Log missed jit ops for poor man profiling

This is just for debugging, and off unless you change `USE_JIT_MISSMAP` to true.  It's overly simple but I think it's useful for checking what are the top ops.

Here's results for a few games I quickly tested:

```
vc3: lwc1 (1d08), swc1 (17x0), lh (c09), sb (6f7), lb (5fb), lbu (440), sv.q (273), c.lt (22e), cvt.s.w (212), lv.q (203), mflo (1bb), mult (161), c.le (1c1)
toe: lbu (296), sb (227), lh (199), mult (93), mflo (91), lwc1 (87), swc1 (46), lb (41), lwl (39), swl (26), mfhi (23), sllv (21), max (13), break (12), cvt.s.w (10)
fat princess: lh (1652), swc1 (1196), sb (967), sv.q (927), lv.q (720), lwc1 (717), lbu (668), lb (478), vflush (248), cvt.s.w (188), sllv (176), mflo (127), lv.s (102), mult (95), vpfxt (85)
3rd birthday: swc1 (11194), lwc1 (10281), sb (2612), lbu (1527), lv.s (1245), lv.q (1160), lh (1088), sv.q (717), sv.s (653), cvt.s.w (595), lb (444), c.lt (282), c.le (273), mflo (210), ext (171)
ff1: sb (1676), lwc1 (1517), swc1 (1478), lbu (1406), lh (734), mflo (308), cvt.s.w (291), mult (275), lb (210), mfhi (134), div (129), lv.q (103), lwr (101), ins (86), sv.q (79)
crisis: swc1 (1856), lb (1369), lwc1 (1330), lbu (818), lh (606), sb (595), lv.q (297), sv.q (191), mflo (134), cvt.s.w (129), lv.s (115), sv.s (91), mult (83), lwr (52), c.lt (51)
lumines: lwc1 (928), swc1 (454), mult (242), lbu (215), sb (209), mflo (192), cvt.s.w (159), mfhi (116), lb (90), min (88), div (55), break (51), c.lt (47), lv.q (21), c.eq (18)
type-0 demo: swc1 (5950), lwc1 (5787), sb (2898), lh (2163), lbu (2093), lb (1804), lv.q (969), sv.q (621), cvt.s.w (534), mflo (372), lv.s (359), c.lt (287), div (248), mult (237), c.eq (232)
worms 1 demo: swc1 (8264), lwc1 (6880), sb (4211), lh (3798), lbu (2224), lb (703), lv.s (408), c.le (399), cvt.s.w (394), c.lt (375), mflo (302), swl (249), mult (192), sv.s (175), sllv (156)
cladun: sb (1042), lh (811), lbu (645), lb (640), swc1 (543), lwc1 (448), mflo (281), cvt.s.w (234), div (126), mult (124), lwr (55), c.eq (50), lv.s (47), divu (37), ins (35)
fieldrunners: swc1 (1680), lwc1 (1521), sb (1270), lbu (487), lb (292), lh (182), cvt.s.w (179), c.le (154), c.lt (152), mflo (129), div (69), ins (63), mult (58), c.eq (48), lwr (28)
wipeout: swc1 (6176), sv.q (6110), lv.q (4764), lwc1 (4307), vmov (3772), lbu (1446), sb (1238), mtv (1134), mfv (1014), c.lt (649), c.le (598), vscl (472), lh (436), lb (432), vdot (346)
```

-[Unknown]