Inconsistent behavior in WP function unfolding

[codyroux]

Right now, calling

bap foo --pass=wp --wp-inline=true

inlines nothing, since the wp-inline-funcs flag is not set and defaults to the empty list.

Similarly,

bap foo --pass=wp --wp-inline-funcs=foo

does not inline foo since the wp-inline flag is not set!

My feeling is that not specifying a wp-inline-funcs inlines everything rather than nothing, and that wp-inline-funcs should imply wp-inline.

[fortunac]

Setting wp-file1 and wp-file2 should also imply wp-compare.

[fortunac]

Handled in #73