Integrate amethyst-inspector

[Awpteamoose]

Hey, I was asked if I want to take a crack at #16 and this is it.

[khskarl]

[INFO][gfx_device_gl::shade] 		Uniform[0] = 'camera_position'	F32	Vector(3)
[INFO][gfx_device_gl::shade] 		Uniform[1] = 'line_width'	F32	Single
[INFO][gfx_device_gl::shade] 		Attrib[0] = "normal"	F32	Vector(3)
[INFO][gfx_device_gl::shade] 		Attrib[1] = "color"	F32	Vector(4)
[INFO][gfx_device_gl::shade] 		Attrib[2] = "position"	F32	Vector(3)
[INFO][gfx_device_gl::shade] 		Block[0] = 'VertexArgs' of size 192
[INFO][gfx_device_gl::shade] 			Element at 0	= 'proj'	F32	Matrix(ColumnMajor, 4, 4)
[INFO][gfx_device_gl::shade] 			Element at 64	= 'view'	F32	Matrix(ColumnMajor, 4, 4)
[INFO][gfx_device_gl::shade] 			Element at 128	= 'model'	F32	Matrix(ColumnMajor, 4, 4)
[DEBUG][gfx_device_gl::shade] Program 7 reflection: ProgramInfo { vertex_attributes: [AttributeVar { name: "normal", slot: 0, base_type: F32, container: Vector(3) }, AttributeVar { name: "color", slot: 1, base_type: F32, container: Vector(4) }, AttributeVar { name: "position", slot: 2, base_type: F32, container: Vector(3) }], globals: [ConstVar { name: "camera_position", location: 0, count: 1, base_type: F32, container: Vector(3) }, ConstVar { name: "line_width", location: 1, count: 1, base_type: F32, container: Single }], constant_buffers: [ConstantBufferVar { name: "VertexArgs", slot: 0, size: 192, usage: VERTEX | GEOMETRY, elements: [ConstVar { name: "proj", location: 0, count: 1, base_type: F32, container: Matrix(ColumnMajor, 4, 4) }, ConstVar { name: "view", location: 64, count: 1, base_type: F32, container: Matrix(ColumnMajor, 4, 4) }, ConstVar { name: "model", location: 128, count: 1, base_type: F32, container: Matrix(ColumnMajor, 4, 4) }] }], textures: [], unordereds: [], samplers: [], outputs: [], output_depth: false, knows_outputs: false }
[DEBUG][amethyst_renderer::pipe::effect] Creating raw constant buffers
[INFO][gfx_device_gl::factory] 	Created buffer 3
[DEBUG][amethyst_renderer::pipe::effect] Set global uniforms
[DEBUG][amethyst_renderer::pipe::effect] Process Color/Depth/Blend outputs
[DEBUG][amethyst_renderer::pipe::effect] Finished building effect
[INFO][gfx_device_gl::shade] 	Compiled shader 8
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Pipeline(Program(Vertex(CompilationFailed("ERROR: 0:1: \'\' :  version \'130\' is not supported\nERROR: 0:2: \'\' :  #version required and missing.\n"))))', src/libcore/result.rs:1009:5
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::_print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: std::panicking::continue_panic_fmt
   6: rust_begin_unwind
   7: core::panicking::panic_fmt
   8: core::result::unwrap_failed
   9: <amethyst_imgui::DrawUi as amethyst_renderer::pipe::pass::Pass>::compile
  10: <amethyst_renderer::pipe::pass::CompiledPass<P>>::compile
  11: <hetseq::list::List<(H, T)> as hetseq::functor::Functor<F>>::fmap
  12: <amethyst_renderer::pipe::stage::StageBuilder<Q>>::build
  13: <amethyst_renderer::pipe::pipe::PipelineBuilder<Q> as amethyst_renderer::pipe::pipe::PipelineBuild>::build
  14: <amethyst_renderer::system::RenderSystem<P>>::build
  15: <amethyst_renderer::bundle::RenderBundle<'c, B, P> as amethyst_core::bundle::SystemBundle<'a, 'b>>::build
  16: evolution_island::main
  17: std::rt::lang_start::{{closure}}
  18: std::panicking::try::do_call
  19: __rust_maybe_catch_panic
  20: std::rt::lang_start_internal
  21: main

I won't be merging it yet as I can't compile it on my machine.
Amethyst-imgui seems to have a shader that doesn't get along with macOS

I would investigate it but I don't have much time available right now, so maybe this weekend.