lm32: Add doxygen
lm32: Enhance Doxygen #2
i386: shared: Add doxygen
mips/shared: added new doxygen
cpukit/rtems: Add rtems_clock_get_uptime_nanoseconds to the RTEMS API.

Add Timestamp support in the score to return a timestamp in nanoseconds.
Add a test.
Update the RTEMS API documentation.
cpukit/capture: Use the new RTEMS API to get the uptime in nanoseconds.

Use the new API to get the uptime in nanoseconds and update the capture
engine.
cpukit/capture: Print the uptime and diff in ctrace.

Print the uptime and difference in nanoseconds to the previous
record in the ctrace output. For example:

    0:00:59.474927121     14760 0a01000c TNTD 235 235 CREATED_BY
    0:00:59.474927418       297 0a010012 /dev 235 235 CREATED
    0:00:59.474930799      3381 0a01000c TNTD 235 235 STARTED_BY
    0:00:59.474931105       306 0a010012 /dev 235 235 STARTED
    0:00:59.475072297    141192 0a01000c TNTD 235 235 SWITCHED_OUT
bfin_TLL6527: added new doxygen
sptests: refactor sp09/screen13 into a new test spclock_err02
psxtests/psx14: Add doc file
bfin_eZKit533: added new doxygen
lm32_evr: improve doxygen

Add doxygen to the header files in the /lm32/lm32_evr/include directory.
lm32_milkymist: improve doxygen

Add doxygen to the header files in the /lm32/milymist/include directory.
utf8proc1/spedgsched01: minor fixes in test document files
psx03: Add doc file
libbsp/m68k: Add doxygen to m68k shared files.
Test suite documentations corrections and fixes.

Correct the sp02.doc, sp05.doc, sp06.doc, sp07.doc, sp08.doc files.
h8sim: Add Doxygen directives
spregion_err01: New test refactored from sp09
spregion_err01: Remove unneeded fluff copied from sp09

The goal is to shrink the individual tests to have no unneeded
resources and to follow the structure of a normal test.