Remove or deprecate Batch and CompressedBatch proofs for go support

[colin-axner]

The BatchProof and CompressedBatchProof within the CommitmentProof as unused (to the best of our knowledge). This code can be more complex than the common pattern used by ibc-go and causes unnecessary maintenance burden. Given the lack of immediate use case, the support for batch proofs and compressed batch proofs should be dropped. The code may always be added back when necessary

• remove BatchProof, CompressedBatchProof and CombineProofs, refactor: remove BatchVerifyMembership and BatchVerifyNonMembership #390
• update VerifyMembership and VerifyNonMembership API + function logic refactor: VerifyMembership and VerifyNonMembership api #391
• remove internal compress functions refactor: remove all batch and compress logic #392

[colin-axner]

For reference if batch proofs are revived #365