Update gitignore list

Author: VladimirUmek

.gitignore

@@ -1,8 +1,25 @@
-# list files that shall be ignored by git
-build/
-Documentation/Doxygen/freertos.dxy
-Documentation/Doxygen/linkchecker-out.csv
+# Ignored documentation outputs
+Documentation/Doxygen/*.dxy
 Documentation/Doxygen/src/history.txt
-Documentation/html/
-output/
+Documentation/html
 
+# Ignored IDE and cbuild outputs
+**/_*
+**/out
+**/tmp
+**.cbuild*.yml
+**.clangd
+
+# Ignored gen_pack outputs
+build
+output
+**/linkchecker-out.csv
+
+# Ignored libraries
+**.a
+**.lib
+
+# Other files and directories
+**.bak
+**.DS_STORE
+**.tar.bz2