Support password prompt mode

[nolze]

No description provided.

[codecov-io]

Codecov Report

Merging #38 into master will decrease coverage by 0.15%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #38      +/-   ##
==========================================
- Coverage   86.72%   86.57%   -0.16%     
==========================================
  Files          13       13              
  Lines        1145     1147       +2     
==========================================
  Hits          993      993              
- Misses        152      154       +2

Impacted Files	Coverage Δ
msoffcrypto/__main__.py	0% <0%> (ø)	⬆️

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