Make XXX-CAKE pairs mandatory for community tokens

pancakeswap is underusing CAKE and overusing BNB way too much, to start bring this in balance and benefit CAKE holders, I propose to make it mandatory for new community token farms to use a CAKE pair instead of BNB pairs.

e.g. from the current farms:

HOTCROSS-BNB -> HOTCROSS-CAKE GEAR-BNB -> GEAR-CAKE FROYO-BNB -> FROYO-CAKE etc.