Use transformer factory for Bite (#89)

* Use transformer factory for Bite

- introduces separate transformer factory for non-LogNote events
- converter includes `ToEntities` for events defined via ABI

* Updates after rebasing with staging

pkg/transformers/vat_move/transformer_test.go

@@ -34,7 +34,7 @@ import (
 var _ = Describe("Vat move transformer", func() {
 	var config = vat_move.VatMoveConfig
 	var fetcher mocks.MockLogFetcher
-	var converter mocks.MockConverter
+	var converter mocks.MockLogNoteConverter
 	var repository mocks.MockRepository
 	var transformer shared.Transformer
 	var headerOne core.Header
@@ -42,16 +42,16 @@ var _ = Describe("Vat move transformer", func() {
 
 	BeforeEach(func() {
 		fetcher = mocks.MockLogFetcher{}
-		converter = mocks.MockConverter{}
+		converter = mocks.MockLogNoteConverter{}
 		repository = mocks.MockRepository{}
 		headerOne = core.Header{Id: rand.Int63(), BlockNumber: rand.Int63()}
 		headerTwo = core.Header{Id: rand.Int63(), BlockNumber: rand.Int63()}
-		transformer = factories.Transformer{
+		transformer = factories.LogNoteTransformer{
 			Config:     config,
 			Converter:  &converter,
 			Fetcher:    &fetcher,
 			Repository: &repository,
-		}.NewTransformer(nil, nil)
+		}.NewLogNoteTransformer(nil, nil)
 	})
 
 	It("sets the blockchain and database", func() {