Tconnectsync

**Full Changelog**: https://github.com/jwoglom/tconnectsync/compare/v0.6.2...v0.6.3

* When loading a .env file, explicitly looks for $HOME/.config/tconnectsync/.env if a .env file doesn't exist in the current directory.
* Allows environment variables to have higher precedence over .env file contents
* Fixes a bug relating to in-progress extended boluses.

**Full Changelog**: https://github.com/jwoglom/tconnectsync/compare/v0.6.0...v0.6.2

NEW: The following synchronization feature is disabled by default, but can be enabled via the --features flag:

`PUMP_EVENTS`: Events reported by the pump. Includes support for the following:
* Site/Cartridge Change (occurs for both a site change and a cartridge change)
* Empty Cartridge/Pump Shutdown (from my investigation, occurs either when the cartridge runs out of insulin OR you hard-shut off the pump)
* User Suspended (occurs when you manually disable insulin delivery)
* Exercise Mode (in Nightscout, appears with a start and end time)
* Sleep Mode (in Nightscout, appears with a start and end time)

* Tracks manual pump suspensions (e.g., human-initiated "stop insulin" events) as a 0u/hr basal in Nightscout (17)