…n-Fix

Fix #425, Correct Test_OS_ConvertToArrayIndex assertion typo

Fix #346, Adds library build, functional, and coverage test to CI

Fix #424, Add looping wait for self exiting task

unit-tests/osloader-test: make modules always be built for the test

Changes FileName in os_dirent_t from OS_MAX_PATH_LEN to OS_MAX_FILE_NAME,
and moves OS_check_name_length into OS_TranslatePath so it is
consistantly applied everywhere. Also fixes the length checks in
OS_check_name_length to account for terminating null.

Unit tests updated to match new directory name limit.  Coverage
tests updated to match simplified logic.

Fix #344, Consistent directory entry size limit

Use separate source files and CMake-based source selection
based on feature configuration, rather than using the C
preprocessor for including/excluding different OSAL function
groups.

Refactor all implementation units to provide a separate header
file for each functional group/subsystem.  Remove "static"
declaration on internal helper functions so they can be invoked
from unit test.

Fix #285, Refactor OSAL code selection