feat: annotation string processors (#353)

adds a system for processing strings found in annotations before they're used by AnnotationParser

implements #347

Also, because we're using "-Werror", the code won't actually build (and thus tests won't work) using JDK18. To remedy this, a bunch of @SuppressWarnings("serial")s has been added to the exceptions. We don't serialize exceptions, and they're in fact non-serializable because of their members, so this is the appropriate solution (well, the better solution would be to make them serializable, but that's outside the scope of this PR).

gradle/libs.versions.yml

@@ -52,6 +52,7 @@ versions:
   jupiterEngine : 5.8.2
   mockitoCore : 4.1.0
   mockitoKotlin : 4.0.0
+  mockitoJupiter: 4.5.1
   truth : 1.1.3
 
   # build-logic
@@ -206,6 +207,10 @@ dependencies:
     group: org.mockito.kotlin
     name: mockito-kotlin
     version: { ref: mockitoKotlin }
+  mockitoJupiter:
+    group: org.mockito
+    name: mockito-junit-jupiter
+    version: { ref: mockitoJupiter }
   truth:
     group: com.google.truth
     name: truth