Feature/merge raw tx support

[nicolae-leonte-go]

merge the raw tx changes and a fix for the unix socket server app filtering

[codecov-io]

Codecov Report

Merging #536 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #536      +/-   ##
============================================
+ Coverage      99.4%   99.41%   +<.01%     
- Complexity     1443     1462      +19     
============================================
  Files           232      233       +1     
  Lines          4400     4459      +59     
  Branches        224      224              
============================================
+ Hits           4374     4433      +59     
  Misses            5        5              
  Partials         21       21

Impacted Files	Coverage Δ	Complexity Δ
...rum/tessera/thridparty/RawTransactionResource.java	100% <ø> (ø)	3 <0> (ø)	⬇️
...ava/com/quorum/tessera/encryption/EnclaveImpl.java	100% <100%> (ø)	13 <5> (+3)	⬆️
...va/com/quorum/tessera/q2t/TransactionResource.java	100% <100%> (ø)	16 <4> (+4)	⬆️
...om/quorum/tessera/api/model/SendSignedRequest.java	100% <100%> (ø)	5 <5> (?)
...era/transaction/model/EncryptedRawTransaction.java	96.77% <100%> (+0.1%)	18 <1> (+1)	⬆️
...um/tessera/transaction/TransactionManagerImpl.java	100% <100%> (ø)	29 <6> (+6)	⬆️

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