Change Mom to SlotMachine

rather large commit, but essentially a simple rename
Rationale in docs and blogs

lib/slot_machine/slot_machine.rb

@@ -0,0 +1,20 @@
+# The *essential* step from vool to risc, is the one from a language to a machine.
+# From vools statements that hang in the air, to an instruction set.
+#
+# ### List based:  Bit like Risc, just no registers
+#
+# ### Use object memory :  object to object transfer + no registers
+#
+# ### Instruction based
+#
+# So a machine rather than a language. No control structures, but compare and jump
+# instructions. No send or dynamic call, just objects and jump.
+# Machine capabilities (instructions) for basic operations.
+# Use of macros for higher level.
+
+require_relative "instruction.rb"
+require_relative "slot_collection"
+require_relative "callable_compiler"
+require_relative "method_compiler"
+require_relative "block_compiler"
+require_relative "macro/macro"