Write Anonymisation implementation for FoDicom

[tznind]

@rkm did great work in setting up the C# anonymiser microservice that can wrap any anonymiser (with strategy pattern).

We need to add an implementation for FoDicom. There are 2 reasons to do this:

• [ ] So we can compare tag anonymisation performance with CTP
• [ ] Because DLS in HIC currently use FoDicom Anonymiser and want to preserve functionality

[tznind]

I have started working towards this by making FoDicomAnonymiser RDMP pipeline component more reusable. PR is a work in progress here https://github.com/HicServices/RdmpDicom/pull/262

HIC DLS are requesting multiple new features for easy control of anonymisation process e.g.:

• https://github.com/HicServices/RdmpDicom/issues/260
• https://github.com/HicServices/RdmpDicom/issues/261
• https://github.com/HicServices/RdmpDicom/issues/206

And I really don't want to get into having to implement this in 2 places