[Feature:System] Don't set given names to empty string (#37)

Currently this script is setting all users preferred names to an empty
string upon running, which causes many database queries to become
substantially longer to account for both values indicating no desired
preferred name.

[Refactor:API] Semester to Term in Database Calls (#33)

To match [PR #9630](Submitty/Submitty#9630), the
word `term` is changed to `semester` in database accesses.

Update ssaf_sql.php (#29)

DB schema change
firstname -> givenname
lastname -> familyname
per Submitty/Submitty#8779

[Feature:System] Local CSV File (#27)

* Local CSV File

New helper script for retrieving CSV file on an accessible file system.

* Update config.php

Preferred name logging update (#19)

* Update preferred_name_logging.php

Some refactoring and needed adjustments to satisfy request from @bmcutler in PR Submitty/Submitty#4153

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

Better integration and improved error logging

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update readme.md

WIP

* Update readme.md

WIP

* Update readme.md

WIP

* Update preferred_name_logging.php

WIP

* Update readme.md and preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update

WIP

* Update preferred_name_logging.php

WIP (correct spacing of log output)

[Feature:Logging] Preferred name logging sysadmin script (#16)

* Create preferred_name_logging.php

Sysadmin tool portion as part of the logging request under Submitty/Submitty#3273 ("Preferred name is forgotten/removed without any indication why")

Initial code entry.  Testing and tweaking needed.  WIP.

* Update preferred_name_logging.php

Psql can generate several logfiles that need to be parsed.

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

WIP

* Update preferred_name_logging.php

PR Candidate

* Delete preferred_name_logging.php~

Unneeded temp file

* Update submitty_student_auto_feed.php

Add AUTH(entication) logging to student auto feed for preferred name change tracking.

* Create readme.md

Instructions on using the preferred name logging tool.

* Update preferred_name_logging.php

Update to log USER_ID token.