Add 0.6 rpc endpoints

[AnkushinDaniil]

This pull request partially reverts #2229

Changes to MockVM and ThrottledVM:

• Modified the Call and Execute methods in MockVM to accept an additional boolean parameter useBlobData. (mocks/mock_vm.go) [1] [2]
• Updated ThrottledVM to include the useBlobData parameter in its Call and Execute methods. (node/throttled_vm.go) [1] [2]

Changes to RPC Handlers:

• Introduced new methods BlockWithTxHashesV0_6 and BlockWithTxsV0_6 to handle version 0.6 specific responses. (rpc/block.go) [1] [2]
• Added a new type FeeEstimateV0_6 and corresponding conversion functions to support fee estimation for version 0.6. (rpc/estimate_fee.go) [1] [2]
• Implemented EstimateFeeV0_6 and EstimateMessageFeeV0_6 methods to handle fee estimation for version 0.6. (rpc/estimate_fee.go) [1] [2]

Additional Changes:

• Updated the New function in node/node.go to register methods for both version 0.6 and 0.7, and adjusted the metrics accordingly. (node/node.go) [1] [2]
• Added tests for the new version 0.6 methods to ensure they work correctly. (rpc/block_test.go, rpc/estimate_fee_test.go) [1] [2] [3]

These changes ensure that the API can handle both version 0.6 and 0.7 requests, providing backward compatibility and supporting new features.

[codecov]

Codecov Report

Attention: Patch coverage is 85.31250% with 47 lines in your changes missing coverage. Please review.

Project coverage is 75.05%. Comparing base (61d810a) to head (e21edc9).

Files with missing lines	Patch %	Lines
rpc/simulation.go	62.16%	11 Missing and 3 partials ⚠️
rpc/block.go	35.29%	10 Missing and 1 partial ⚠️
rpc/trace.go	73.33%	6 Missing and 2 partials ⚠️
rpc/transaction.go	72.72%	4 Missing and 2 partials ⚠️
node/node.go	77.77%	2 Missing and 2 partials ⚠️
node/throttled_vm.go	33.33%	2 Missing ⚠️
rpc/estimate_fee.go	95.23%	1 Missing ⚠️
rpc/handlers.go	99.39%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2401      +/-   ##
==========================================
+ Coverage   74.48%   75.05%   +0.57%     
==========================================
  Files         113      113              
  Lines       13020    13278     +258     
==========================================
+ Hits         9698     9966     +268     
+ Misses       2587     2562      -25     
- Partials      735      750      +15     

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