The Wire.beginTransmission() and Wire.endTransmission() should not be used together with Wire.requestFrom().

In the function "FDC1004::read16()", there is a Wire.beginTransmission() before the Wire.requestFrom() and a Wire.endTransmission() after a Wire.requestFrom(). Those can be removed.
Explanation: [Common-mistakes](https://github.com/Koepel/How-to-use-the-Arduino-Wire-library/wiki/Common-mistakes), number 2 and 3.