Move conversion between different unit systems to end of table to make UnitConv::convertToBaseUnit() work reliably

- Jobs can now be inserted and queried with arbitrary domain IDs
- Collect agent uses domain ID accordingly during inserts

- Now using an optional "domain ID" as Cassandra partition key
- Can correspond to HPC system, SLURM partition, etc.
- Using materialized views to optimize performance on range queries

- Net-SNMP's persistent directory path can be now specified as a variable

- Reduced code duplication
- Handling some uncommon error conditions
- Preventing error tangling
- Adding methods to fetch pending and finished jobs

Use getPublicSensorNames() to retrieve lit of sensors for wildcard matching instead of getPublicSensorsVerbose()

- If the tool is launched within a job step, the job id will be updated
accordingly (e.g., 12345.1)
- If the SLURM_JOB_USER variable is not defined, we use USER
- Added node substitution for the DEEP-EST prototype

- Operations based on sensors with custom scaling factors would output
wrong results