[Plugins] Introduce new API for registering compiler plugins

Original `ComponentRegistrar` exposes Project to its registration method,
  so plugins should manually register extensions to it. To prepare for
  possible unbound compiler from Project API in future new  `K2ComponentRegistrar`
  introduced which provides registration method without Project at all

plugins/parcelize/parcelize-compiler/build.gradle.kts

@@ -37,6 +37,7 @@ dependencies {
     testApi(projectTests(":compiler:test-infrastructure-utils"))
 
     // FIR dependencies
+    testApi(project(":compiler:fir:entrypoint"))
     testApi(project(":compiler:fir:checkers"))
     testApi(project(":compiler:fir:checkers:checkers.jvm"))
     testApi(project(":compiler:fir:checkers:checkers.js"))