Improve seed reveal check

[bobanm]

What was the problem?

This PR resolves #8578

How was it solved?

• Added previousSeedRequired argument to isSeedValidInput() function, which when set to false completely handles what getSeedRevealValidity() function used to do
• Removed redundant getSeedRevealValidity() function
• Replaced all usage of getSeedRevealValidity() in Random module with isSeedValidInput()

How was it tested?

Added 5 new test cases, which test all [?] possible scenarios when using isSeedValidInput(), including the scenarios previously covered by the removed getSeedRevealValidity() function.

[codecov]

Codecov Report

Merging #8625 (06f0aad) into development (fbb7c2b) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 06f0aad differs from pull request most recent head 3b370dd. Consider uploading reports for the commit 3b370dd to get more accurate results

Additional details and impacted files

@@               Coverage Diff               @@
##           development    #8625      +/-   ##
===============================================
- Coverage        83.34%   83.33%   -0.01%     
===============================================
  Files              593      593              
  Lines            22245    22238       -7     
  Branches          3278     3275       -3     
===============================================
- Hits             18540    18532       -8     
- Misses            3705     3706       +1     

Impacted Files	Coverage Δ
framework/src/modules/random/endpoint.ts	95.18% <100.00%> (ø)
framework/src/modules/random/method.ts	100.00% <100.00%> (ø)
framework/src/modules/random/utils.ts	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes