Put all ES typedefs which are shared across API and telemetry
messages into the "cfe_es_extern_typedefs.h" file.

Put all ES typedefs which define the telemetry interface
into the "cfe_es_msg.h" file.  Also include structures which
define the output of commands that write data files into this
group (query all apps, query all tasks, query all CDS).

Removes some localized definitions and replace with MISSION
scope definitions where appropriate/necessary.

As the name field is a multiple of 4 bytes, there needs to be 3 bytes
of padding, not 1, to avoid implicit padding.

This doesn't change anything, it just makes the padding explicit instead
of implicit.