[Toolkit] Add additional stimulation codes that can be used with drift correction

These stimulations can be used with any functionality that is susceptible to either insert samples into the stream or remove them.
These are more suitable than the current GDF_Incorrect GDF_Correct stimulations which are destined for results of BCI.

Tracker Reference: [CORE-921](https://jira.mensiatech.com/browse/CORE-921)