First commit with layout for Latttice GPU code

src/Groups/Groups.jl

@@ -0,0 +1,28 @@
+###
+### "THE BEER-WARE LICENSE":
+### Alberto Ramos wrote this file. As long as you retain this 
+### notice you can do whatever you want with this stuff. If we meet some 
+### day, and you think this stuff is worth it, you can buy me a beer in 
+### return. <alberto.ramos@cern.ch>
+###
+### file:    Groups.jl
+### created: Sun Jul 11 18:02:16 2021
+###                               
+
+
+module Groups
+
+abstract type Group end
+abstract type Algebra end
+
+include("GroupSU2.jl")
+
+export SU2, SU2alg, dag, normalize, inverse, tr, projalg, norm
+export dot, expm, exp
+
+include("GroupSU3.jl")
+
+
+
+
+end # module