newDataCallback returns copy of Bsec2 instance

[szprytny]

By calling newDataCallback this way:

Bosch-BSEC2-Library/src/bsec2.cpp

Line 359 in 4a08fd0

newDataCallback(data, outputs, *this);

I do get copy of Bsec2 Instance. This is problematic when I want to know which instance is calling my handler. I would prefer to get pointer to Bsec2 address as a third argument of newDataCallback

Bosch-BSEC2-Library/src/bsec2.h

Line 71 in 4a08fd0

typedef void (*bsecCallback)(const bme68xData data, const bsecOutputs outputs, const Bsec2 bsec);

so bsecCallback could be changed to something like:

typedef void (*bsecCallback)(const bme68xData data, const bsecOutputs outputs, Bsec2 *bsec);

I have very basic knowledge of c++, so I don't know if this approach would be correct. What do you think?