docs: Add Doxyfile that was missing from the last commit

docs/Doxyfile

@@ -1,4 +1,4 @@
-# Doxyfile 1.9.5
+# Doxyfile 1.9.6
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
@@ -48,7 +48,7 @@ PROJECT_NAME           = uvgRTP
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.1.2
+PROJECT_NUMBER         = 2.2.0
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -86,7 +86,7 @@ CREATE_SUBDIRS         = NO
 # level increment doubles the number of directories, resulting in 4096
 # directories at level 8 which is the default and also the maximum value. The
 # sub-directories are organized in 2 levels, the first level always has a fixed
-# numer of 16 directories.
+# number of 16 directories.
 # Minimum value: 0, maximum value: 8, default value: 8.
 # This tag requires that the tag CREATE_SUBDIRS is set to YES.
 
@@ -568,7 +568,8 @@ HIDE_UNDOC_MEMBERS     = NO
 # If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
 # undocumented classes that are normally visible in the class hierarchy. If set
 # to NO, these classes will be included in the various overviews. This option
-# has no effect if EXTRACT_ALL is enabled.
+# will also hide undocumented C++ concepts if enabled. This option has no effect
+# if EXTRACT_ALL is enabled.
 # The default value is: NO.
 
 HIDE_UNDOC_CLASSES     = NO
@@ -859,6 +860,14 @@ WARN_IF_INCOMPLETE_DOC = YES
 
 WARN_NO_PARAMDOC       = NO
 
+# If WARN_IF_UNDOC_ENUM_VAL option is set to YES, doxygen will warn about
+# undocumented enumeration values. If set to NO, doxygen will accept
+# undocumented enumeration values. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: NO.
+
+WARN_IF_UNDOC_ENUM_VAL = NO
+
 # If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
 # a warning is encountered. If the WARN_AS_ERROR tag is set to FAIL_ON_WARNINGS
 # then doxygen will continue running as if WARN_AS_ERROR tag is set to NO, but
@@ -1271,10 +1280,11 @@ CLANG_DATABASE_PATH    =
 
 ALPHABETICAL_INDEX     = YES
 
-# In case all classes in a project start with a common prefix, all classes will
+# The IGNORE_PREFIX tag can be used to specify a prefix (or a list of prefixes)
-# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# that should be ignored while generating the index headers. The IGNORE_PREFIX
-# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# tag works for classes, function and member names. The entity will be placed in
-# while generating the index headers.
+# the alphabetical list under the first letter of the entity name that remains
+# after removing the prefix.
 # This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
 
 IGNORE_PREFIX          =
@@ -1353,7 +1363,12 @@ HTML_STYLESHEET        =
 # Doxygen will copy the style sheet files to the output directory.
 # Note: The order of the extra style sheet files is of importance (e.g. the last
 # style sheet in the list overrules the setting of the previous ones in the
-# list). For an example see the documentation.
+# list).
+# Note: Since the styling of scrollbars can currently not be overruled in
+# Webkit/Chromium, the styling will be left out of the default doxygen.css if
+# one or more extra stylesheets have been specified. So if scrollbar
+# customization is desired it has to be added explicitly. For an example see the
+# documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
 HTML_EXTRA_STYLESHEET  =
@@ -1369,17 +1384,13 @@ HTML_EXTRA_STYLESHEET  =
 HTML_EXTRA_FILES       =
 
 # The HTML_COLORSTYLE tag can be used to specify if the generated HTML output
-# should be rendered with a dark or light theme. Default setting AUTO_LIGHT
+# should be rendered with a dark or light theme.
-# enables light output unless the user preference is dark output. Other options
+# Possible values are: LIGHT always generate light mode output, DARK always
-# are DARK to always use dark mode, LIGHT to always use light mode, AUTO_DARK to
+# generate dark mode output, AUTO_LIGHT automatically set the mode according to
-# default to dark mode unless the user prefers light mode, and TOGGLE to let the
+# the user preference, use light mode if no preference is set (the default),
-# user toggle between dark and light mode via a button.
+# AUTO_DARK automatically set the mode according to the user preference, use
-# Possible values are: LIGHT Always generate light output., DARK Always generate
+# dark mode if no preference is set and TOGGLE allow to user to switch between
-# dark output., AUTO_LIGHT Automatically set the mode according to the user
+# light and dark mode via a button.
-# preference, use light mode if no preference is set (the default)., AUTO_DARK
-# Automatically set the mode according to the user preference, use dark mode if
-# no preference is set. and TOGGLE Allow to user to switch between light and
-# dark mode via a button..
 # The default value is: AUTO_LIGHT.
 # This tag requires that the tag GENERATE_HTML is set to YES.