Support Picoscope3000 series+MSO (missing AWG)

[bvernoux]

Add support of Picoscope 3000 series (including MSO option)

[bvernoux]

There is still an issue (was present in older glscopeclient when Picoscope3000 was basically supported before the refactoring) with the timebase which is wrong

Example capture
Horizontal scale is wrong expected signal is 1kHz/2Vp-p (Picoscope Probe compensation pin) here it is 2.5x faster (2.5KHz instead of 1KHz)
Even here with 1MS & 62.5MS/s same issue as with 100kS & 62.5MS/s

Update:
It is fixed in 45df1de

[azonenberg]

Please ensure compliance to the project coding style (https://github.com/azonenberg/coding-policy/blob/master/cpp-coding-policy.md)

In particular, curly braces and "else" clauses live on their own line:

if(foo)
{
}
else
{
}

Do not do:

if(foo)
{
} else {
}