Unravel much of the bp2build denylist.

This change involves adding a number of packages to the bp2build allowlist,
and subsequently adding several specific modules to the denylist (with reasoning).

The end result is that:
1. It's more clear why certain modules are denylisted, either via their unsupported
   dependencies or unsupported properties.
2. This increases the number of converted targets to 320, up from 284.

Test: mixed_droid.sh
Test: bp2build.sh

Change-Id: I9f50869401455033a191c6c41d3836509afe1071