book.dat.extra: Additional 9x9 lines for Pachi

book.dat.extra: Additional 9x9 lines for Pachi

Normally, we use Fuego's default opening book for 9x9.  I was going
through the last 9x9 KGS tournament. We definitely need some branch for
E5-G5-F3-C5, since this is the canonical reply to Pachi-black popular
line E5-G5-F3.

Some statistics:

  Zen9-pachi2   ... black (pachi) won
        E5 E7 G6 E3 C4 C7 G3 D4 D5 C3 B5
  Zen9-pachi2-2 ... white (!pachi) won
        E5 E7 G6 E3 C4 C3 D4 D3 C7 F6 F5 G7 ?H5 C8 !F2 F3 !!G2
        (I think instead of H5, G3 is better)
  Zen9-pachi2-3 ... jigo
        E5 E7 G6 E3 C6 G7 F3 F2 F4 C4 H7
  Zen9-pachi2-4 ... white (!pachi) won
        E5 E7 G6 E3 E4 C7 C6 B7 D3 F3 D2 G4 ?F7
        (maybe F7 would be better at H5)

  Fuego-pachi2  ... black (pachi) won
        E5 E7 G6 E3 C6 C7 D3 D2 D4 D6 C5 G3 F8 G5 F7
  Fuego-pachi2-2... black (pachi) won
        E5 E7 G6 E3 C6 C7 D3 D2 D4 D6 C5 G3 F8 B6 C2 G5 F5 H5 E8
  Fuego-pachi2-3... white (!pachi) won
        E5 E7 G6 E3 C6 C7 D3 D2 D4 D6 C5 G3 F8 B6 C2 E2 !B5 F3
        (should play at E8/F7 inst. of B5)
  Fuego-pachi2-4... black (pachi) won
        E5 E7 G6 E3 C6 C7 D3 D2 D4 D6 C5 G3 F8 G5 F7

  Fuego-Zen9    ... black won
        E5 E7 *G5 E3 C5 G7 G3 C3 D2 C2 E2 F2 F3
  Fuego-Zen9-2  ... white won
        E5 E7 *G5 E3 C5 G7 G3 C3 D2 C2 E2 F2 F3
        (black must play the ensuing ko! but pachi does)

  Zen9-Fuego    ... black won
        E5 E7 *G5 E3 C5 C7 C3 G3 G7 !D6 D5 D2 B8
  Zen9-Fuego-2  ... white won
        E5 E7 *G5 E3 C5 C7 C3 G3 G7 D6 !F2 E2 H3

I'm not too fond of Zen/Fuego line. It is almost completely unexplored
in the current book and after C3 inst. of G3 it leads to hairy tsumego
situations like the bulky five. I believe we should have the following
lines:

  primary
			E5-E7-G6-E3-C6-C7-D3-D2-D4-G4
  for white also
			E5-E7-G6-E3-C6-C7-D3-D2-D4-D6-C5-G3-F8-B6-C2-E2-E8
			E5-E7-G6-E3-C4-C3-D4-D3-C7-F6-F5-G7-G3
			E5-E7-G5-E3-C5-C7-C3-G3-G7