* Add Kitronik (KitronikLtd) as an approved org
Kitronik work closely with the foundation and have a number of packages, and they understand the requirements for alpha/beta release quality so we're adding them as an approved org.
* Remove pxt-kitronik-servo-lite now Kitronik are approved
With Kitronik an approved org, this doesn't need to be approved here anymore
The BitBot package owners have asked to be whitelisted and the package meets the requirements:
* Appropriately named repo
* Substantive tests
* Clear README
* Approval from the BitBot manufacturer for this third party library to be whitelisted