brewnit: Added recipe base.

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
brewnit: Added US Quart to Volume units
brewnit: Hop is now subclassed in Leaf and Pellet

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
Comment correction for weight of hops
brewnit: Time is now a unit

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
brewnit: Temperatures are now units

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
brewnit: Renamed Malt to Grain and added Adjunct (Rice hulls and such)

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>
brewnit: Added two pilot recipes.

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>