[client] use cmake to generate renderers/fonts/clipboards headers/code

This is in preperation of cmake options to enable/disable various
functionallity.

client/renderers/EGL/shader/cursor.vert

@@ -0,0 +1,25 @@
+#version 300 es
+
+layout(location = 0) in vec3 vertexPosition_modelspace;
+layout(location = 1) in vec2 vertexUV;
+
+uniform vec4 mouse;
+
+out highp vec2 uv;
+
+void main()
+{
+  gl_Position.xyz = vertexPosition_modelspace;
+  gl_Position.w   = 1.0;
+
+  gl_Position.x += 1.0f;
+  gl_Position.y -= 1.0f;
+
+  gl_Position.x *= mouse.z;
+  gl_Position.y *= mouse.w;
+
+  gl_Position.x += mouse.x;
+  gl_Position.y -= mouse.y;
+
+  uv = vertexUV;
+}