Add exclude cipher suites in ssl config

[namtruong]

Add excludeCipherSuites option to SslConfig so that users can manually exclude some weak or insecure ciphers.

See #931 for details

[codecov-io]

Codecov Report

Merging #940 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##             master    #940      +/-   ##
===========================================
+ Coverage      99.3%   99.3%   +<.01%     
- Complexity     2073    2075       +2     
===========================================
  Files           311     311              
  Lines          5778    5781       +3     
  Branches        326     326              
===========================================
+ Hits           5738    5741       +3     
  Misses            5       5              
  Partials         35      35

Impacted Files	Coverage Δ	Complexity Δ
...main/java/com/quorum/tessera/config/SslConfig.java	100% <100%> (ø)	48 <2> (+2)	⬆️

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