Release 0.7.5 (#70)

* Resolve issue with opaque tokens not being parsed correctly

* Increase test coverage

* Further improvements to test coverage and code quality

* Add new providers.

* fixup! Add new providers.

* Cleanup.

* fixup! Cleanup.

* fixup! fixup! Cleanup.

* fixup! fixup! fixup! Cleanup.

* fixup! fixup! fixup! fixup! Cleanup.

* Memory management optimisation

24 bytes per Put < 256-4096 bytes per buffer allocation avoided (10-170x difference)

* Pooling cleanup.

test_utils_test.go

@@ -324,9 +324,9 @@ func TestTraefikOidcHelperMethods(t *testing.T) {
 	traefikNilLogger.safeLogInfo("test info with nil logger")
 }
 
-// Test createDefaultHTTPClient function
+// Test CreateDefaultHTTPClient function
 func TestCreateDefaultHTTPClient(t *testing.T) {
-	client := createDefaultHTTPClient()
+	client := CreateDefaultHTTPClient()
 
 	if client == nil {
 		t.Fatal("createDefaultHTTPClient() returned nil")