New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/shaders/GL/transit.vsh.glsl

@@ -0,0 +1,26 @@
+attribute vec3 a_position;
+attribute vec4 a_normal;
+attribute vec4 a_color;
+
+uniform mat4 u_modelView;
+uniform mat4 u_projection;
+uniform mat4 u_pivotTransform;
+
+uniform float u_lineHalfWidth;
+
+varying vec4 v_color;
+
+void main()
+{
+  vec2 normal = a_normal.xy;
+  vec2 transformedAxisPos = (vec4(a_position.xy, 0.0, 1.0) * u_modelView).xy;
+  if (dot(normal, normal) != 0.0)
+  {
+    vec2 norm = normal * u_lineHalfWidth;
+    transformedAxisPos = calcLineTransformedAxisPos(transformedAxisPos, a_position.xy + norm,
+                                                    u_modelView, length(norm));
+  }
+  v_color = a_color;
+  vec4 pos = vec4(transformedAxisPos, a_position.z, 1.0) * u_projection;
+  gl_Position = applyPivotTransform(pos, u_pivotTransform, 0.0);
+}