Add constants for time-of-day boundaries

Split off more misc constants into proper files

constants/input_constants.asm

@@ -0,0 +1,26 @@
+; joypad buttons
+	const_def
+	const A_BUTTON_F ; 0
+	const B_BUTTON_F ; 1
+	const SELECT_F   ; 2
+	const START_F    ; 3
+	const D_RIGHT_F  ; 4
+	const D_LEFT_F   ; 5
+	const D_UP_F     ; 6
+	const D_DOWN_F   ; 7
+
+NO_INPUT   EQU %00000000
+A_BUTTON   EQU 1 << A_BUTTON_F
+B_BUTTON   EQU 1 << B_BUTTON_F
+SELECT     EQU 1 << SELECT_F
+START      EQU 1 << START_F
+D_RIGHT    EQU 1 << D_RIGHT_F
+D_LEFT     EQU 1 << D_LEFT_F
+D_UP       EQU 1 << D_UP_F
+D_DOWN     EQU 1 << D_DOWN_F
+
+BUTTONS    EQU A_BUTTON | B_BUTTON | SELECT | START
+D_PAD      EQU D_RIGHT | D_LEFT | D_UP | D_DOWN
+
+R_DPAD     EQU %00100000
+R_BUTTONS  EQU %00010000