Pass-fail variant of burst_pattern is missing from nidigital API

[sbethur]

Description of issue

There are two variants of burst_pattern in LV and .NET APIs:

1. Does not wait for pattern burst to complete
2. Waits for pattern burst to complete and returns pass-fail results

Currently, to do what the 2nd variant in other APIs do, users have to call three methods:

burst_pattern()
get_site_pass_fail()
get_site_results_site_numbers()

..which is ugh. Also, 2nd variant is the majority use-case.

We should make burst_pattern more usable by making these changes:

• Put these defaults --> wait_until_done=True, timeout=10. This will be done when Improve usability of nidigital API by making method args optional when applicable #1072 is fixed.
• If wait_until_done=False, call niDigital_BurstPattern(wait_until_done=False) and return None.
• If wait_until_done=True, call niDigital_BurstPattern(wait_until_done=True). Then call niDigital_GetSitePassFail() to get pass-fail results as list of bools. Then call niDigital_GetSiteResultsSiteNumbers() to get the sites corresponding to the results. Finally return the results as a dictionary of site (str): Pass-fail result (bool).