Convert BuildIgnoreApexContritbutions variable to a boolean

(This relands aosp/3007754 with additional handling for go apexes. The
additional handling was added in internal in ag/26705862, so we need to
add this to aosp as well)

The ignore list is burdensome to maintain once we start adding the
module sdk contents to apex_contributions. Convert the variable to a
boolean. When set to true, all contents in `apex_contributions` will be
ignored

Test: m nothing on aosp,google and google_fullmte devices
Ignore-AOSP-first: CL topic does a cleanup of an internal only denylist

Merged-In: If899f6eaf5449c2aa789d0bd5b791a3db715c676
Merged-In: I4532f3743eb3b7121e1f5e522097c1aba3d9a4fd
Change-Id: I18db6657b78b2741c7f9af9e9d0150f85edeeda7