Tests 3 restructure (#754)

* moved files

* moved files

* initial v3 additions

* moves req data

* tests passing, restructuring, remove v2

* fmt; clippy; prepare

* merge conflicts + issues

* merge conflict, fmt, clippy, prepare

* revs

* fixed failing test

* fixed tests

tests/v2_tests.rs

@@ -0,0 +1,16 @@
+// importing common module.
+mod common;
+
+// Not all tests expect exactly the same functionality in v2 and v3.
+// For example, though we expect the /GET version to return the corresponding project,
+// we may want to do different checks for each.
+// (such as checking client_side in v2, but loader fields on v3- which are model-exclusie)
+
+// Such V2 tests are exported here
+mod v2 {
+    mod project;
+    mod scopes;
+    mod search;
+    mod tags;
+    mod version;
+}