ics.get_messages() GIL locking performance

[drebbe-intrepid]

When waiting for messages to come across the bus we lock and unlock the GIL needlessly every 1ms.

See Pull Request here for more details: #58

[drebbe-intrepid]

@pierreluctg

[drebbe-intrepid]

Don't close this until we merge this into 4.0 also.

[pierreluctg]

@drebbe-intrepid, please see #62, #63 and #64.

Thank you

[drebbe-intrepid]

@pierreluctg Merged, thank you for taking the time to do this! Are you in an immediate need for a release?

[pierreluctg]

@drebbe-intrepid it would be appreciated if you could push some release, yes.

We are using v803 mainly and will be moving to v900 soon.

Thank you

[pierreluctg]

@drebbe-intrepid is there anything I can do to accelerate this?

Thank you