Add gcc 4.7 from Android NDK

[leftmostcat]

This adds gcc 4.7 from the Android Native Development Kit version r8e. The distribution includes several other compilers (multiple versions of both gcc and clang for x86, arm, and mips-le), but it's not clear whether these can be provided to the decomp.me frontend through the same compiler ID.

[mkst]

How big is this image? Do we need everything from the archive?

[leftmostcat]

It weighs in at 1.4G for the entire setup. Most of that could be trimmed away by dropping extraneous toolchains. Should I create a new template for this?

[mkst]

Yeh, that would be great, most of the compiler images are only a few MB (with the exception of Clang which is similar size to this currently)

[mkst]

Unless it's easier to just repackage the compiler as a new archive and host it somewhere (like we do for many other compilers)?

[leftmostcat]

Repackaging might make more sense, as the dockerfile would have to remove specific versions and so can't be easily templated. Please let me know how best to go about making that package available.

[mkst]

You can attach it here and I'll add it to the releases packages (see previously closed PRs for reference) 👍