resinator: Include directories regression in build system integration

[squeek502]

Zig Version

0.12.0-dev.3594+355cceebc

Steps to Reproduce and Observed Behavior

Before #19174, the resinator preprocessor was clang and was invoked after calling addCCArgs which added mod.cc_argv and comp.global_cc_argv to the preprocessor argv. This meant that include directories added via things like std.Build.Compile.addIncludePath would make it into the argv of the preprocessor.

After #19174, that is no longer the case. Because of this, there's no real way to use a LazyPath for include directories that get passed to resinator (there's only RcSourceFile.flags which is a []const []const u8).

Expected Behavior

Either:

• There should be a dedicated way to interface with resinator include dirs, etc through the build system (i.e. addRcIncludePath), or
• The include dirs added via std.Build.Compile.addIncludePath, etc should be inherited by resinator (as was done with clang before)

I'm currently leaning towards the second option, but am not totally sure yet.