Show evaluation from white POV in trace

We chose this instead of negamax sign convention
(ie. from the point of view of the side to move)
because it is more in line to how the eval
table is presented.

Also some tweak to formatting while there.

No functional change.
Fix a warning with MSVC 2010

Warning C4804: '<' : unsafe use of type 'bool' in operation

No functional change.
Fix a compile error with Intel C++

Error: a value of type "int" cannot be assigned
to an entity of type "Value"

No functional change.
Do not workaround function argument evaluation

Rewrite options initialization to do not trying to
hack upon the undefined evaluation order of function
arguments.

No functional change.
Drop not defended by pawn condition

Passed no-regression test both at STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 96554 W: 17563 L: 17572 D: 61419

and at LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 31891 W: 4905 L: 4801 D: 22185

bench: 7720896