environment docs added - modified env func selection

See merge request !353

[FIX] #250

Closes #250

See merge request !348

Reindex flags refactoring + match method fix

See merge request !346

Fix Processing Functions. Introduce custom target Parameter.

See merge request !343

flags data and result properties of SaQC

See merge request !342

callWrapper in register decorator becomes a Class

See merge request !339

- added property flags
- added property flagsRaw
- added property data
- added property dataRaw
- added property result
- added Result class
- rm Accessors
- fixed test that rely on getResult

Multivariate functions

See merge request !340

History sensitive plots

See merge request !317

unused KW-warning removed

Closes #242

See merge request !341

Included new input format in flag Manual

See merge request !318

Remove the core `target` parameter

See merge request !337

fix copy simple

See merge request !336

- fixed copy-tests
- fixed deepcopy attrs in dios

New register

See merge request !338

added info attribute to saqc-class

See merge request !330

-Werror (warnings as errors) with every pytest call

See merge request !332

fixed dios warnings

See merge request !333

fixed warnings and silenced some warnings in testsuite, that dont matter. 

closes #223

See merge request !331