address add isContract member

[llwslc]

What does this PR do?
add new opcode isContract
Why are these changes required?

This PR has been tested by:

• Unit Tests
• Manual Testing

Follow up

Extra details

TIP44

[codecov-io]

Codecov Report

Merging #2323 into develop will increase coverage by 0.34%.
The diff coverage is 43.33%.

@@              Coverage Diff              @@
##             develop    #2323      +/-   ##
=============================================
+ Coverage      44.01%   44.36%   +0.34%     
- Complexity      5046     5092      +46     
=============================================
  Files            596      596              
  Lines          36706    36723      +17     
  Branches        3973     3975       +2     
=============================================
+ Hits           16156    16292     +136     
+ Misses         19030    18889     -141     
- Partials        1520     1542      +22

Impacted Files	Coverage Δ	Complexity Δ
...c/main/java/org/tron/common/runtime/vm/OpCode.java	98% <100%> (+0.01%)	17 <0> (ø)	⬇️
src/main/java/org/tron/core/Wallet.java	21.05% <22.22%> (+0.11%)	77 <0> (ø)	⬇️
src/main/java/org/tron/common/runtime/vm/VM.java	65.99% <71.42%> (+0.04%)	117 <0> (+2)	⬆️
...va/org/tron/common/runtime/vm/program/Program.java	51.17% <75%> (+0.18%)	140 <2> (+2)	⬆️
.../java/org/tron/common/runtime/config/VMConfig.java	84.84% <0%> (+3.03%)	19% <0%> (+1%)	⬆️
...va/org/tron/common/overlay/discover/node/Node.java	62.71% <0%> (+5.08%)	15% <0%> (+3%)	⬆️
...ay/discover/node/statistics/MessageStatistics.java	51.03% <0%> (+5.51%)	14% <0%> (+4%)	⬆️
...ron/common/net/udp/message/UdpMessageTypeEnum.java	94.11% <0%> (+5.88%)	5% <0%> (+1%)	⬆️
...erlay/discover/node/statistics/NodeStatistics.java	42.85% <0%> (+5.95%)	7% <0%> (ø)	⬇️
...tron/common/overlay/discover/node/NodeManager.java	52.2% <0%> (+6.28%)	24% <0%> (+1%)	⬆️
... and 11 more

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[ithinker1991]

LGTM

[sullof]

@Sh11thead
To improve TronWeb and stop users from trying to transfer TRX and assets to a smart contract account we need an API that can be called to check if that address is actually a smart contract or not. Do you plan to add a new HTTP API for that?

[Sh11thead]

@sullof
This API may be a solution .
/wallet/getcontract?value=
If the non-smart contract address, this interface will report an error.

We are envisioning a new API or a unified transfer method that can transfer both the normal address and the smart contract address.