Introduce TestingContext to pass data between tests and KotlinBuilder; introduce BuildLogger to log build events (build finished, files marked as dirty) in KotlinBuilder

jps-plugin/testData/incremental/pureKotlin/valRemoveCustomAccessor/build.log

@@ -1,18 +1,27 @@
+================ Step #1 =================
+
 Cleaning output files:
-out/production/module/META-INF/module.kotlin_module
-out/production/module/test/UsageKt.class
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/test/UsageKt.class
 End of files
 Compiling files:
-src/usage.kt
+  src/usage.kt
 End of files
+Exit code: ABORT
+------------------------------------------
 COMPILATION FAILED
 Smart cast to 'kotlin.Int' is impossible, because 'a.x' is a property that has open or custom getter
 
+================ Step #2 =================
 
 Cleaning output files:
-out/production/module/test/A.class
+  out/production/module/test/A.class
 End of files
 Compiling files:
-src/A.kt
-src/usage.kt
-End of files
+  src/A.kt
+  src/usage.kt
+End of files
+Exit code: ADDITIONAL_PASS_REQUIRED
+------------------------------------------
+Exit code: NOTHING_DONE
+------------------------------------------