Change groupby_transform_primitives parameter name to groupby_trans_primitives

[rwedge]

Changes the DeepFeatureSynthesis paramater to match the shortened naming style used with agg_primitives and trans_primitives

[codecov]

Codecov Report

Merging #476 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master    #476   +/-   ##
======================================
  Coverage    96.3%   96.3%           
======================================
  Files         103     103           
  Lines        8882    8882           
======================================
  Hits         8554    8554           
  Misses        328     328

Impacted Files	Coverage Δ
featuretools/tests/dfs_tests/test_dfs_method.py	98.41% <ø> (ø)	⬆️
...ols/tests/dfs_tests/test_deep_feature_synthesis.py	98.55% <ø> (ø)	⬆️
featuretools/synthesis/dfs.py	73.91% <ø> (ø)	⬆️
featuretools/synthesis/deep_feature_synthesis.py	96.75% <100%> (ø)	⬆️

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