Add functions to retrieve floats, uint8, uint16, int8, int16

[Paolo Brandoli]

Currently only getSignedLong and getUnsignedLong are present: those functions convert int8, int16, uint8 and uint16 to long or unsigned long. Additionally, getDouble() converts floats to double before returning the value.

Add functions that return directly int8, int16, uint8 and uint16 and float.

Rename (alias) getSignedLong and getUnsignedLong to getInt32 and getUint32.

[Paolo Brandoli]

Addresses #316. Added set/get uint16, uint8, float

→ <<cset 3da17938666e>>

[Paolo Brandoli]

Addresses #316. Corrected tests to use new set/get (u)int8 and (u)int16

→ <<cset bd934d122ecd>>

[Paolo Brandoli]

Addresses #316. Use latest compiler on Windows (2015 fails SFINAE)

→ <<cset 5af146dcdb40>>

[Paolo Brandoli]

Addresses #316. Updated Gtest and VisualStudio version (needed by SFINAE)

→ <<cset 95f941a0b5fc>>

[Paolo Brandoli]

Addresses #316. Corrected isFloat()

→ <<cset d3da10eb013a>>

[Paolo Brandoli]

Addresses #316. Corrected gtest 1.10.0 library location

→ <<cset 4a1220d6ffd6>>

[Paolo Brandoli]

Addresses #316. Added set/get (u)int8/16 and float to objectivec

→ <<cset 347c2a4c84c9>>

[Paolo Brandoli]

Addresses #316. Corrected call to setValue in writingDataHandlerNumeric::setStringConvert

→ <<cset 2c25b393d6e5>>

[Paolo Brandoli]

Addresses #316. Renamed set/get(Un)signedLong to set/get(U)int32

→ <<cset 2747e6c0513a>>

[Paolo Brandoli]

Addresses #316. Use new set/get(U)int32 in tests

→ <<cset 444797dde7fb>>

[Paolo Brandoli]

Addresses #316. Updated changes log

→ <<cset c50a52886fd6>>

[Paolo Brandoli]

Resolves #316 (Add functions to retrieve floats, uint8, uint16, int8, int16) as per SOP DEVENH/2

→ <<cset 8673bd59a38b>>