Next draft of sram.asm. Save/SRAM changes to save, init, and password

Deleted previewdatacopy.asm which was for SRAM Trace which we no longer
support. Password moved to $703000. 32-bits at $FFE0 in ROM (unused
hardware vector) now burned into $702015 in SRAM with ROM name.

init.asm

@@ -24,7 +24,7 @@ Init_Primary:
 	
 	LDX #$00
 	-
-		LDA $702000, X : CMP $00FFC0, X : BNE .clear
+		LDA RomNameSRAM, X : CMP $00FFC0, X : BNE .clear
 		INX
 		CPX #$15 : !BLT -
 	BRA .done
@@ -38,7 +38,7 @@ Init_Primary:
 		SEP #$30 ; set 8-bit accumulator & index registers
 		LDX #$00
 		-
-			LDA $00FFC0, X : STA $702000, X
+			LDA $00FFC0, X : STA RomNameSRAM, X
 			INX
 			CPX #$15 : !BLT -
                 LDX #$00