Fix handling of interrupt endpoints. i.e. no ZLPs.
Fix the assignation of endpoint types.
Add button support for MM900evx boards.
On board support do not block for UART input.
Correct USB FIFO use for setup data phases (OUT transfers). We cannot stop traffic on the control endpoint so we set a flag and pull data from host when tinyUSB requests it from the USB FIFO. Extend this for all endpoints although currently not required.
Rename all instances of ft90x which can apply to ft93x as ft9xx.
Add support for the cdc_dual_ports example for ft9xx.
Add LED pin definition for board LED in a simple to access place on the Bridgetek MM900EVx boards.
Gordon McNab