Add support for ignoring nulls in JsonDataEncoder

[mrwillis21]

No description provided.

[rlazo]

Sweeeeeeeet

[google-oss-bot]

The public api surface has changed for the subproject encoders_firebase-encoders-json:
error: Added method com.google.firebase.encoders.json.JsonDataEncoderBuilder.ignoreNulls(boolean) [AddedMethod]

Please update the api.txt files for the subprojects being affected by this change by running ./gradlew ${subproject}:generateApiTxtFile. Also perform a major/minor bump accordingly.

[codecov]

Codecov Report

Merging #1175 into master will increase coverage by 20.87%.
The diff coverage is 100%.

Flag	Coverage Δ	Complexity Δ
#Encoders_FirebaseEncodersJson	95.93% <100%> (-4.07%)	68 <8> (+68)
#Encoders_FirebaseEncodersProcessor	?	?
#Encoders_FirebaseEncodersReflective	100% <ø> (ø)	0 <ø> (ø)	⬇️
#FirebaseAbt	?	?
#FirebaseCommon	?	?
#FirebaseCommon_DataCollectionTests	?	?
#FirebaseCommon_Ktx	?	?
#FirebaseComponents	?	?
#FirebaseConfig	?	?
#FirebaseConfig_Ktx	?	?
#FirebaseCrashlytics	?	?
#FirebaseDatabase	?	?
#FirebaseDatabaseCollection	?	?
#FirebaseDatabase_Ktx	?	?
#FirebaseDatatransport	100% <ø> (ø)	0 <ø> (ø)	⬇️
#FirebaseDynamicLinks	?	?
#FirebaseDynamicLinks_Ktx	?	?
#FirebaseFirestore	?	?
#FirebaseFirestore_Ktx	?	?
#FirebaseFunctions	?	?
#FirebaseFunctions_Ktx	?	?
#FirebaseInappmessaging	68% <ø> (-32%)	391 <ø> (+391)
#FirebaseInappmessagingDisplay	?	?
#FirebaseInappmessagingDisplay_Ktx	?	?
#FirebaseInappmessaging_Ktx	?	?
#FirebaseInstallations	?	?
#FirebaseSegmentation	?	?
#FirebaseStorage	?	?
#FirebaseStorage_Ktx	?	?
#Tools_Errorprone	?	?
#Tools_Lint	?	?
#Transport_TransportBackendCct	91.02% <ø> (-8.98%)	142 <ø> (+142)
#Transport_TransportRuntime	?	?

Impacted Files	Coverage Δ	Complexity Δ
...e/encoders/json/JsonValueObjectEncoderContext.java	96.66% <100%> (+0.23%)	56 <6> (+4)	⬆️
...firebase/encoders/json/JsonDataEncoderBuilder.java	93.02% <100%> (+0.52%)	10 <2> (+2)	⬆️
...android/datatransport/cct/internal/LogRequest.java	100% <0%> (ø)	2% <0%> (ø)	⬇️
...e/android/datatransport/cct/CctBackendFactory.java	100% <0%> (ø)	2% <0%> (ø)	⬇️
...ndroid/datatransport/cct/internal/LogResponse.java	100% <0%> (ø)	6% <0%> (ø)	⬇️
...ort/cct/internal/JsonBatchedLogRequestEncoder.java	88.88% <0%> (ø)	1% <0%> (ø)	⬇️
.../datatransport/cct/internal/ClientInfoEncoder.java	66.66% <0%> (ø)	2% <0%> (ø)	⬇️
...e/android/datatransport/cct/internal/LogEvent.java	100% <0%> (ø)	4% <0%> (ø)	⬇️
...ansport/cct/internal/BatchedLogRequestEncoder.java	100% <0%> (ø)	2% <0%> (ø)	⬇️
.../datatransport/cct/internal/LogRequestEncoder.java	81.25% <0%> (ø)	5% <0%> (ø)	⬇️
... and 689 more

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[google-oss-bot]

The public api surface has changed for the subproject encoders_firebase-encoders-json:
error: Added method com.google.firebase.encoders.json.JsonDataEncoderBuilder.ignoreNullValues(boolean) [AddedMethod]

Please update the api.txt files for the subprojects being affected by this change by running ./gradlew ${subproject}:generateApiTxtFile. Also perform a major/minor bump accordingly.