The code for this appears to already be in the game, if you equip an exotic weapon in the kinetic slot, regardless of ornaments, if you inspect a shader, that shader will also be applied to the exotic weapon (good examples of this include Outbreak Perfected, Suros Regime, Sweet Business, and Monte Carlo)
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Bungie : "We have been listening to your feedback regarding exotics and applying shaders to them. As of next season you will be able to purchase a new resource called Exotimorphomagraphic Essence of Shaderweaves. This will be available for silver from eververse that will allow you to convert a single shader into an exotic shader. Each Material will cost 389 Silver, and will be bundled in a similar fashion to the Transmog Consumables in the Store".