[IMP] firmware: Application v1.2.1 BT * Remove old BC127 library

[IMP] firmware: Application v1.2.1 BT * Remove old BC127 library

[IMP] firmware: Application v1.2.1 UI Updates * Make use of new BT APIs & Events * Add Support for the BM83 * Remove Mic Bias setting

[IMP] firmware: Application v1.2.1 Handler Updates * Break handler out into multiple files * Create BM83/BC127 specific event handlers and timers

[IMP] firmware: Application v1.2.1 configurations.xml * Add new BT library files to MPLab config

[IMP] firmware: Bootloader v2 * Use ISRs for UART * Add support for 128kB EEPROM * Rework protocol packet handling * Add catch for Application failing to boot * Add UART passthrough for BM83 updates * Support Hardware 1.x and 2.x

[IMP] firmware: Bootloader v2 * Use ISRs for UART * Add support for 128kB EEPROM * Rework protocol packet handling * Add catch for Application failing to boot * Add UART passthrough for BM83 updates * Support Hardware 1.x and 2.x

[IMP] firmware: Remove empty line

[IMP] firmware: Updates to v1.1.18 fixes * Rework the way that metadata is requested * Raise metadata request interval * Rename strncpyz to UtilsStrncpy

Added description for safer string copy and some cleanup.