arduino-core-psoc6 0.3.0

What's Changed

• Set dns by @IFX-Anusha in #93
• cores/psoc6/time.c : Refactored delay() and delayMicroseconds() implementation. by @jaenrig-ifx in #96
• cores/psoc6/Uart: Fixes on tx overflow and improvements by @jaenrig-ifx in #95
• Wifi set timeout by @IFX-Anusha in #98
• Wifi reason code by @IFX-Anusha in #97
• Wifi channel by @IFX-Anusha in #99
• libraries/SPI: Fix parsing of NC value. by @ederjc in #100
• Psoc ino adc by @ramya-subramanyam in #101
• Replace examples with submodule by @ramya-subramanyam in #89
• Psoc ino adc fix by @ramya-subramanyam in #102
• platform.txt: Bumped version for 0.3.0 release. by @jaenrig-ifx in #103

Full Changelog: 0.2.1...0.3.0