[CLEANUP] Move Doxyfile to Build/ (#1574)

Author: AnReiter

.gitattributes

@@ -7,6 +7,5 @@
 /CODE_OF_CONDUCT.md export-ignore
 /CONTRIBUTING.md export-ignore
 /bin/ export-ignore
-/config/ export-ignore
 /docs/ export-ignore
 /tests/ export-ignore

config/Doxyfile Build/doxyfile/configconfig/Doxyfile renamed to Build/doxyfile/config

@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = "../PHP-CSS-Parser-Documentation"
+OUTPUT_DIRECTORY       = "PHP-CSS-Parser-Documentation"
 
 # If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and
@@ -281,7 +281,7 @@ OPTIMIZE_OUTPUT_VHDL   = NO
 # Note that for custom extensions you also need to set FILE_PATTERNS otherwise
 # the files are not read by doxygen.
 
-EXTENSION_MAPPING      = 
+EXTENSION_MAPPING      =
 
 # If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
 # according to the Markdown format, which allows for more readable
@@ -754,7 +754,7 @@ WARN_LOGFILE           =
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = 
+INPUT                  =
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses