Time discrepancy between API calls

[alex-brinkman]

jsd_get_time_sec uses MONOTONIC clock but jsd_time_get_time_sec uses REALTIME resulting in the following discrepancy:

jsd_get_time_sec: 601064.325004
jsd_time_get_time_sec: 1666677923.852767

All references to jsd_get_time_sec should be removed in favor for the header-only definition of jsd_time_* variant.