GitLab

- Added some more indentation to make the configurations more readable
- Fixed one more warning in dcdbquery

- Fixing a few warnings here and there in the tools subdirectory

Explicitly cast arguments to DCDB:Timestamp constructor to uint64_t to avoid ambiguities with different compilers

Rework DCDBQuery::doQuery() and DCDBQuery::genOutput() to leverage proper regular expressions for function-, sensor-, and modifier-parsing.

Bugfix: Parse for functions and modifiers in a sensorname string first, then lookup the actual sensor name in the DB

Added functions like Deltas, Integrals and Derivatives to queries. Still need to fix unit conversions and scaling factors for all functions.

Adds -f option to dcdbquery and dcdbunitconv.

* Extended DCDBConfig and SensorDataStore to provide functions for querying data
* Adapted dcdbquery accordingly
* Project now compiles again but dcdbquery likely to be broken

Use the -r option to get raw values instead.