Add encryptor type CUSTOM

[oriunbound]

No description provided.

[oriunbound]

I added encryption-ub module to our GitHub to use the CUSTOM encryptor type, https://github.com/unbound-tech/encryption-ub

[codecov-commenter]

Codecov Report

Merging #1094 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master    #1094   +/-   ##
=========================================
  Coverage     99.39%   99.39%           
  Complexity     2264     2264           
=========================================
  Files           350      350           
  Lines          6298     6299    +1     
  Branches        360      360           
=========================================
+ Hits           6260     6261    +1     
  Misses            5        5           
  Partials         33       33           

Flag	Coverage Δ	Complexity Δ
#unittests	99.39% <100.00%> (+<0.01%)	2264.00 <0.00> (ø)

Impacted Files	Coverage Δ	Complexity Δ
.../java/com/quorum/tessera/config/EncryptorType.java	100.00% <100.00%> (ø)	1.00 <0.00> (ø)

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