More straightforward usage

[Gama11]

Currently these 3 steps are required to use hxcpp-debugger:

1. add -lib hxcpp-debugger
2. add -D HXCPP_DEBUGGER
3. add new debugger.HaxeRemote(true, "localhost"); to the entry point

It would be nice if this could be reduced to just the first step.

Eliminating step 2 should be simple, either via an extraParams file that automatically defines HXCPP_DEBUGGER if the lib is included, or just by using the define that is added for the haxelib instead. I can't really think of a situtation where you would want to include the lib, but not define HXCPP_DEBUGGER?

The code needed could be injected via a macro somehow. @RealyUniqueName pointed out that alternatively, static var initialization could be abused for this.
There would still need to be a way to manually set the host IP somehow for remote debugging of course.

(discussed in haxe-dev, cc @Simn / @nadako)

[RealyUniqueName]

Host IP could be set via compiler flag like -D DEBUG_HOST=127.0.0.1
And then get it in lib's code:

var host = haxe.macro.Compiler.getDefine('DEBUG_HOST');
if (host == null) host = <default_value>;

[Gama11]

Sounds good! Not sure if HXCPP_DEBUG_HOST would be better.