Consolidate .gitignore patterns (#1816)

Author: mkeeter

.gitignore

@@ -1,3 +1,15 @@
 target/
 itm.txt
 *.swp
+
+**/*.rs.bk
+.#*
+.gdb_history
+
+# editor files
+.vscode/*
+!.vscode/*.md
+!.vscode/*.svd
+!.vscode/launch.json
+!.vscode/tasks.json
+!.vscode/extensions.json