XTCE12 — Add forward/reverse calibrator metadata

Description Kevin Rice 2007-10-22 21:48:47 BST
Some organizations wish to capture counts to units on the telemetry side & then
units to counts on command side (often called reverse or inverse calibrators).
In some cases they may wish to both for various reasons, often in testing
scenarios to validate their operation calibration. XTCE does not provide an
easy way to mark a calibrator as either 'reverse' or 'forward'.

Not necessary to mark calibrators as forward/reverse

The vast majority of calibrators can be computed in both directions without issue. There are some corner cases where it is much tougher. I propose that we do not need that in XTCE 1.2. Implementations that are relatively complete already exist for this purpose.

Defer to a future XTCE RFP like a "2.0".