Format shader compilation errors with line numbers and listing of info log entries

[BonsaiDen]

At the moment shader compilation failures just print out the debug representation of the error as a giant wall of unformatted text, making it rather hard to debug custom shaders.

This PR changes it so that shader compilation failures now result in an output like the one below:

thread 'main' panicked at /home/ivo/dev/23/three-d/src/renderer.rs:404:25:
failed compiling fragment shader

source:
001: #version 330 core
002: in float cascadeDepth;
003:
004: layout (location = 0) out vec2 outColor;
005:
006: void main() {
007:     // Emulate GL_DEPTH_CLAMP
008:     float depth = clamp(cascadeDepth, 0.0, 1.0);
009:     gl_FragDepth = depth;
010:
011:     // bias second moment based on viewing angle
012:     // See https://www.youtube.com/watch?v=F5QAkUloGOs
013:     float dx = dFdx(depth);
014:     float dy = dFdy(depth);
015:     vec2 moments = vec2(depth, depth * depth);
016:     moments.y += 0.25 * (dx * dx + dy * dy);
017:
018:     // Optimization for 2 moments proposed in
019:     // http://momentsingraphics.de/Media/I3D2015/MomentShadowMapping.pdf
020:     moments.y = 4.0 * (moments.x - moments.y);
021:     outColor = ;
022: }
023:
024:

log:
0(21) : error C0000: syntax error, unexpected ';', expecting "::" at token ";"

[asny]

Super nice 🥳 Thanks for the contribution 🙏