Setup repo to support client generation with tsp-client (Azure#1845)

* add emitter configs

* ignore TempTypeSpecFiles dir

* update gitattributes

* update emitter-package.json to use specific versions

---------

Co-authored-by: Catalina Peralta <[email protected]>

Author: catalinaperalta

.gitattributes

@@ -2,6 +2,8 @@
 # may be invalid.  You need to run "cargo update" again.
 Cargo.lock merge=binary
 
+*package-lock.json merge=binary
+
 # Use unix line endings everywhere, even on Windows
 * text=auto eol=lf
 sdk/**/src/generated/**/*.rs linguist-generated=true

.gitignore

@@ -12,3 +12,6 @@ Cargo.lock
 *.swo
 *.swp
 *.vim
+
+# temporary folder to refresh SDK with TypeSpec
+TempTypeSpecFiles/