Add Spack recipe

.spack/repo/packages/csg-eb/package.py

@@ -6,14 +6,13 @@
 from spack import *
 
 CSG_REPO = "https://mfix.netl.doe.gov/gitlab/exa/csg-eb.git"
-CSG_BRANCH = "spack"
+CSG_BRANCH = "main"
 
 
 class CsgEb(CMakePackage):
     """Define Embedded Boundaries (for AMReX) using CSG"""
 
     homepage = "https://mfix.netl.doe.gov/gitlab/exa/csg-eb"
-    url = "https://mfix.netl.doe.gov/gitlab/exa/csg-eb/-/archive/spack/csg-eb-spack.tar.gz"
 
     version("main", git=CSG_REPO, branch=CSG_BRANCH)