New Example for Time Based Synchronization

[MAnoushe-NI]

• [x] This contribution adheres to CONTRIBUTING.md.

~~I've added tests applicable for this pull request~~

What does this Pull Request accomplish?

Adds an example for Time-Based Synchronization

Why should this Pull Request be merged?

No examples in nidaqmx python for this.

What testing has been done?

Confirmed working with cDAQ and AI Module

[zhindes]

I really appreciate the new example; thank you! Some requests:

• Please create a new folder called time_based in examples/synchronization and put this here.
• Rename this example voltage_acq_int_clk_time_start.py
• Add a summary at the top of the example. e.g., Take the one from voltage_acq_int_clk.py and modify it according to the time-based nature of your changes

I'll make more specific code comments in the file itself.

[zhindes]

Closing this old PR. If anybody is interesting in contributing a feature like this, we can open a new one and have a discussion.