Release 2.6.1

Core fixes

Make pinMode() always reconfigure gpio if called explicitly
Fix the preprocess linkerscript (thanks @rajames)
SocketWrapper: UDP: send packet on endPacket(), not on write()
Fix calling ::flush() on SerialUSB
Serial: drop characters if the ringbuffer is full
Added rules for pluggable discoveries and monitors

Targets improvements

Add RP2040 RTC and Watchdog patches
RP2040: use proper fix for usb_device_enumeration
Nicla Sense ME:

• Update bootloader binaries
• Added defines for internal pins

Libraries fixes

WiFi: fix linking inherited macAddress()
Portenta: PDM: cut out unusable starting PDM sample
Portenta: PDM: use PLL3 to clock SAI
PR2040: Disable DMA_IRQ_0n when stopping PDM peripheral
lvgl: add compatibility layer for both v7 and v8

Libraries improvements

Modernize all the libraries
Fix incorrect/misleading library.properties
Add a ton of examples
Portenta: RPC library is now out of beta 🎉