feat(hip 991): Permissionless revenue generating topics

[venilinvasilev]

Description:

This HIP introduces new transactions and updates to existing transactions in the consensus node software. SDKs will need to support these new transactions and updates to existing ones so that developers can take advantage of the new features.

Checklist:

• Implementation
• Unit tests
• Integration tests
• Example

Related Issues:
#2551

[codecov]

Codecov Report

Attention: Patch coverage is 90.81967% with 56 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/topic/TopicCreateTransaction.js	81.03%	33 Missing ⚠️
src/transaction/CustomFeeLimit.js	82.64%	21 Missing ⚠️
src/topic/TopicUpdateTransaction.js	98.89%	2 Missing ⚠️

Files with missing lines	Coverage Δ
src/exports.js	100.00% <100.00%> (ø)
src/token/CustomFixedFee.js	94.44% <100.00%> (ø)
src/topic/TopicInfo.js	100.00% <100.00%> (ø)
src/topic/TopicMessageSubmitTransaction.js	95.13% <100.00%> (ø)
src/transaction/Transaction.js	90.18% <100.00%> (ø)
src/topic/TopicUpdateTransaction.js	83.81% <98.89%> (ø)
src/transaction/CustomFeeLimit.js	82.64% <82.64%> (ø)
src/topic/TopicCreateTransaction.js	78.55% <81.03%> (ø)