change crypto API

[JaSei]

• change crypto API
• change TempFile and TempDir API
• change New paremeter
• add support go modules
• add 1.10-1.13 go in travis

[codecov-io]

Codecov Report

Merging #7 into master will increase coverage by 1.08%.
The diff coverage is 79.71%.

@@            Coverage Diff             @@
##           master       #7      +/-   ##
==========================================
+ Coverage   67.15%   68.23%   +1.08%     
==========================================
  Files          15       15              
  Lines         271      318      +47     
==========================================
+ Hits          182      217      +35     
- Misses         56       62       +6     
- Partials       33       39       +6

Impacted Files	Coverage Δ
parent.go	100% <100%> (ø)	⬆️
child.go	86.66% <100%> (+3.33%)	⬆️
crypto.go	55.55% <62.96%> (-6.95%)	⬇️
new.go	80.32% <88.88%> (+7.35%)	⬆️

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