databases/firebird25-{server|client}: 2.5.2 -> 2.5.3

Changes:
http://www.firebirdsql.org/file/documentation/release_notes/html/rlsnotes253.html#notes-253

PR:		193174
Tested by:	Steve Faleiro <stevef199@yahoo.com>
Add upstream patch to fix CMake detection.

At least since 2.8.12 `cmake --help' stopped outputting its version number,
which was being used by Qt Creator in its CMake detection process.

PR:		193283
- Install CMake's Help/ directory. Its contents are used by commands such as
  `cmake --help-command' and `cmake --help-policies', which were just
  erroring out or not printing anything.
  Modules/ and Templates/ are still installed by devel/cmake-modules.

  Reported by gahr@.

- Pass --parallel to CMake's bootstrap script to parallelize the initial
  part of its build process.