Beginning of delete attachment support

[flimzy]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 79.41176% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 64.13%. Comparing base (9022b7d) to head (bd45947).
Report is 7 commits behind head on master.

Files	Patch %	Lines
x/sqlite/deleteattachment.go	66.66%	4 Missing and 1 partial ⚠️
x/sqlite/util.go	88.23%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #898      +/-   ##
==========================================
+ Coverage   64.11%   64.13%   +0.01%     
==========================================
  Files         294      295       +1     
  Lines       19564    19582      +18     
==========================================
+ Hits        12543    12558      +15     
- Misses       6440     6442       +2     
- Partials      581      582       +1     

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