add training_reuse_decay_steps

[tuoping]

When starting with init-model, add a "training_reuse_decay_steps" parameter.

[codecov-commenter]

Codecov Report

Base: 39.54% // Head: 39.55% // Increases project coverage by +0.00% :tada:

Coverage data is based on head (47e5733) compared to base (02d7d7d). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##            devel    #1055   +/-   ##
=======================================
  Coverage   39.54%   39.55%           
=======================================
  Files          99       99           
  Lines       17980    17982    +2     
=======================================
+ Hits         7111     7113    +2     
  Misses      10869    10869           

Impacted Files	Coverage Δ
dpgen/generator/run.py	65.07% <100.00%> (+0.02%)	:arrow_up:

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.