Add Vim.gitignore to .gitignore

- Taken from <https://github.com/github/gitignore/blob/master/Global/Vim.gitignore>

Author: Radoslav Georgiev

.gitignore

@@ -65,3 +65,16 @@ target/
 # Databases
 *.sqlite3
 .vscode
+
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags