Added optional expiration time

An expiration time can be set globally or for individual tests. When the expiration time is reached, the job is terminated. The purpose is to prevent unintentional long running jobs.

Added option for custom assertions in test_runner.py

User-defined assertions can be added without modifying the base abaverify code

Added tabular results type

Added tabular results type to compare a series of x,y data points.
Several other minor bug fixes.

Initial open source release

v0.1

0.1