Release of version 1.7.0

What's Changed

• Fixes and raw data interface for BGT24LTR11-Pulsed-Doppler-Radar lib by @mkiessling-ifx in #171
• Update to support RF-Shield Rev. 3.0 by @mkiessling-ifx in #180
• Improve Maintainability of pins_arduino.h by @techpaul in #183
• Develop repeat of 183 into master by mistake by @techpaul in #184
• updated compiler to version 10.3-2021.10 by @boramonideep in #187
• Enable XMC1400 Kit for Arduino board into the Arduino IDE by @boramonideep in #190
• Devmaster merge by @jaenrig-ifx in #192
• Develop by @jaenrig-ifx in #193
• Fix for Issue #185 by @boramonideep in #191
• PWM functionality on some pins of XMC1100 Boot Kit by @boramonideep in #194
• Enable XMC4200 P2GO by @boramonideep in #198
• Tidy up variants and documentation by @techpaul in #196
• Fix for issue #197 by @boramonideep in #202
• Fix for issue 199 for version 1.x by @boramonideep in #207
• 24 ghz radar by @IFX-Anusha in #205
• Develop by @jaenrig-ifx in #213
• develop 1.x into develop1.x to release as v1.7.0 by @boramonideep in #217
• Develop 1.x by @jaenrig-ifx in #218

Full Changelog: V1.6.0...V1.7.0