faux 1.1.0

Breaking changes

• sim_design() now names anonymous within and between factors like W and B or W1, W2, W3, ..., and B1, B2, ... instead of A, B, C, ...

New features

• add_contrast() and associated contr_code_*** functions
• add_random() and associated mixed design building functions

Minor improvements and fixes

• get_params() doesn't need between, within, id, and dv set for date created by sim_design()
• plot_design() can display a subset of factors
• sim_design() fixed a bug in when setting n with an unnamed vector and within-subjects factors