#2 More HandEra font weirdness

[Larry Gilbert]

When testing Chess Client in POSE with a ROM image from
the HandEra 330, POSE reports a memory leak whenever
the program is stopped.

Through experimentation, I've noticed a connection
between the memory leak and the call to FntDefineFont
in chesscli.c. That is, the leak only happens if
FntDefineFont has been called to define the custom font.

[Larry Gilbert]

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This appears to be a general problem with the HandEra's
handling of custom fonts in scale-to-fit mode. The bug does
not occur when running at traditional resolution.