Add initial prototype.

3-mid/physics/interface/library/physics.gpr

@@ -0,0 +1,25 @@
+with
+     "bullet_thin", 
+     "box2d_thin", 
+     "c_math_thin",
+     "lace",
+     "lace_shared";
+
+--library
+project Physics
+is
+   for Create_Missing_Dirs use "True";
+
+   for Object_Dir   use "build";
+   for Library_Dir  use "lib";
+--   for Library_Name use "lace_physics";
+
+   for Source_Dirs  use ("../source", 
+                         "../source/private/box2d",
+                         "../source/private/bullet");
+
+   package Ide      renames Lace_shared.Ide;
+   package Builder  renames Lace_shared.Builder;
+   package Compiler renames Lace_shared.Compiler;
+
+end Physics;