set_uniform_value
Description:
Sets value as the payload for the uniform name inside the shader effect
The Type of the value must be one of: 
      INT, for a single integer value; 
      FLOAT, for a single floating point value; CLUTTER_TYPE_SHADER_INT,
      for an array of integer values; CLUTTER_TYPE_SHADER_FLOAT, for an array of floating point values; and 
        CLUTTER_TYPE_SHADER_MATRIX, for a matrix of floating point values. It also accepts 
      DOUBLE for compatibility with other languages than C.
Parameters:
| this | |
| name | 
           the name of the uniform to set  | 
      
| value | 
           a Value with the value of the uniform to set  |