LCL uses clipboard cache to support all clp formats on all OS,
even if OS don't support some.
In CudaLister plugin for Total Commander [based on
CudaText parts], I need method to clear this cache.
Clipboard.Clear is not ok [i need contents of OS clp]. Method
needed to solve this issue:
https://github.com/Alexey-T/CudaLister/issues/27 (english text
also). I will call it before reading Clipboard.AsText.