Go through outdated content

[FilippoOggionni]

This concerns the following files, located here:

• EstimatableParameterSet_Appendix.rst (not sure where it comes from)
• developer_guide_tudat.rst (this can be moved to the tudat-developer docs, together with the _src_developer directory)
• example_application_10.rst (outdated example, shall we delete it or adapt it?)

[DominicDirkx]

The first one used to be on the dynamics simulator page (?) It has since been incorporated into other pages. The example application #10 has been rewritten and can be deleted. Indeed, the developer guide page should be merged with existing developer docs. @FilippoOggionni, could you link this to the relevant open issue on developer docs (?) if any?

[FilippoOggionni]

Thanks for the info!
I deleted the first and third files, while I moved the second one in the directory with developer content (see 0fa2708).
I will mention such directory in tudat-team/tudat-developer-docs#11.