added simkl rest files

rest/Simkl/SimklGetAuthorizationToken.http

@@ -0,0 +1,12 @@
+# @name SimklGetAuthorizationToken
+
+POST https://api.simkl.com/oauth/token
+Content-Type application/json
+
+{
+  "grant_type": "authorization_code",
+  "client_id": "{{SIMKL_CLIENT_ID}}",
+  "client_secret": "{{SIMKL_CLIENT_SECRET}}",
+  "redirect_uri": "http://localhost:6734/callback",
+  "code": {{SIMKL_CODE}}
+}