pylonsrc: handle corupt frames

[AB-Eskild]

This should help solve issue #14 handling corrupt frames.

I found that many errors occurred because the transport layer not being able to keep up with the frame-rate and packet size required for the application. This can also be seen when connecting through the PylonViewer that comes with the Pylon SDK.

The parameters added helps with optimizing the bandwidth usage. And creates some tolerance for error messages related to incomplete packages.

[joshdoe]

Sorry @AB-Eskild , I somehow missed this PR. I just tested it out, and it does seem to help. I know packetsize needs to be adjusted at least to accommodate hardware that doesn't support jumbo packets, and failrate is set to how much you can tolerate dropped/corrupted frames. grabtimeout I suppose could be for cameras that are slower to generate their first frame. The other properties I'm not sure how they might need to be adjusted. It looks like interpacketdelay and frametransdelay can be adjusted according to the application note from Basler titled Controlling packet transmission timing with delays.

Before merging, I'd like to prefix the commit messages with "pylonsrc: " as other commits have shown. If you're still interested in this PR, maybe you can rebase to fix them and maybe squash the bugfix commits. If not, I'll try and do this soon.

[mrstecklo]

I've applied some of the ideas from this PR in my corrupt-patch branch. As I really need high FPS and stable stream on GigE camera.
I didn't add properties that control camera features because I'm using PFS preset. But I think somebody may need to adjust them manually or just can't use PFS because loading all features is a bit slow.
Actually I've adjusted only packet size in my PFS, but some frames are still failing. Now with failrate and grabtimeout properties I can achieve stable stream. But I know also that inter packet delay is useful too. Description of other features seems promising, but I don't really now if those are helpful.
One thing I've noticed is that gst_pylonsrc_set_bandwidthReserve and gst_pylonsrc_set_bandwidthReserveAcc both set GevSCBWR feature

[mrstecklo]

I've rebased this branch on top of my changes, as @AB-Eskild does not respond and there are many merge conflicts. I'll open a new PR after my current one is merged

[joshdoe]

Closing this, as this has been included in #51, thanks @AB-Eskild