…lization

Organize source files into a directory and naming pattern that is
compliant with the CFE current recommended practice.

Configurable items are moved to the respective header files and
documentation is added to indicate what they do.

Add a separate "encode" step as part of TO_LAB output forwarding.
Initially, this is just a pass through implementation, so it matches
current behavior.

Fix #166, reorganize source files

…t-id-names

Fix #133, Apply consistent Event ID names to common events

…l-if-elseif

Fix #145, Refactor mutually exclusive logic in if, else if block

…ister-failure-during-init

Fix #147, Add check for failure of CFE_EVS_Register() during initialization

…-codes-to-CFE_Status_t

Fix #155, Convert int32 return codes and variables to CFE_Status_t

…ader-file

Fix #157, Move function prototypes to header file

…ader-variable

Fix #162, Update misnamed CmdHeader variable in to_lab_msg.h

Correct various merge issues in the latest IC