Don't use symbolic links for git.

Since git 2.23 .gitignore that is a symbolic link is ignored. I made them explicit now (though I'm not sure they're even needed)

Author: faassen

crates/cli/.gitignore

@@ -0,0 +1,6 @@
+/target
+Cargo.lock
+/.vscode
+/.idea
+/tmp
+expand.rs

crates/cli/.gitignore

@@ -0,0 +1,6 @@
+/target
+Cargo.lock
+/.vscode
+/.idea
+/tmp
+expand.rs