Document API of supported devices about fast-arduino-lib

[jfpoilpret]

New MCP23017 device API is now documented as of commit 2813449

[jfpoilpret]

Next API doc will be written for each devices namespace in the following order:

• devices::servo
• devices (SIPO and WinBond classes, no specific namespace)
• devices::sonar
• devices::audio
• devices::rf
• devices::rtc
• devices::magneto

[jfpoilpret]

All devices API should be finished documenting by end 2019.

[jfpoilpret]

devices::servo API documented since commit 07cb05a

[jfpoilpret]

devices SIPO API documented since commit 0a825a8

[jfpoilpret]

devices WinBond API documented since commit cba7b1f

[jfpoilpret]

Just set milestone to 1.2 as documentation is progressing well and should not need that much time to complete!

[jfpoilpret]

Currently working on sonar API documentation and that one should be soon finished, just a few days more.

[jfpoilpret]

devices::sonar API documented since 0eb0db3

[jfpoilpret]

devices::audio API documented since cf1cdd2

[jfpoilpret]

devices::rtc API documented since f5f550f

[jfpoilpret]

devices::magneto::HMC5883L device documented since 98cfc78

[jfpoilpret]

devices::magneto::MPU6050 device documented as of commit 17b3b58

[jfpoilpret]

All devices API are now documented. Issue can be closed.