feat: database backend add ssdb support

[neolynx]

Replaces #1115

Requirements

All new code should be covered with tests, documentation should be updated. CI should pass.

Description of the Change

Checklist

• [ ] unit-test added (if change is algorithm)
• [ ] functional test added/updated (if change is functional)
• [ ] man page updated (if applicable)
• [ ] bash completion updated (if applicable)
• [ ] documentation updated
• [ ] author name in AUTHORS

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 72.35772% with 102 lines in your changes missing coverage. Please review.

Project coverage is 74.85%. Comparing base (87fc8c1) to head (393712c).

Files with missing lines	Patch %	Lines
database/ssdb/storage.go	64.60%	31 Missing and 9 partials :warning:
database/ssdb/transaction.go	81.60%	19 Missing and 4 partials :warning:
database/ssdb/database.go	55.55%	12 Missing and 4 partials :warning:
context/context.go	0.00%	15 Missing :warning:
database/ssdb/batch.go	93.42%	4 Missing and 1 partial :warning:
database/ssdb/log.go	25.00%	2 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1280      +/-   ##
==========================================
- Coverage   74.90%   74.85%   -0.06%     
==========================================
  Files         150      155       +5     
  Lines       17005    17374     +369     
==========================================
+ Hits        12738    13005     +267     
- Misses       3255     3338      +83     
- Partials     1012     1031      +19     

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