Redesign gitignore

New design of the gitignore for Microsoft. Reason is a more professional
appearance as well as more practical and general use.

.gitignore

@@ -1,5 +1,15 @@
+## --- AL gitignore ---
+## Ignores generated binary files and 
+## temporary files from Visual Studio and Visual Studio code
+
 # Binary files
+.alpackages/
 *.app
 
 # Temp files
-.vs/
+.vs/
+.vscode/
+
+# Others
+~$*
+*~