TEST: Basic tests for dynamic MRS fitting

1. Tests for the dynMRS and dynRes classes.
2. Fixed bug in MCMC optimisation introduced in editing (multi basis set) enhancement.
3. Removed unnecessary methods in dynMRS.

See merge request fsl/fsl_mrs!29

ENH: Dynamic editing enabled by allowing multiple basis sets.

See merge request fsl/fsl_mrs!28

- Update dynamic fitting to allow one basis set for each MRS object.
- Update synthetic from basis function to pass scaled MRS out as output.

BF: Post practical feedback

See merge request fsl/fsl_mrs!27

BF: Conjugation of basis in fsl_mrsi now happens before adding any MM. Fixed report MRM reference.

Closes #17 and #18

See merge request fsl/fsl_mrs!26

Merge for version 1.1.7 - pre FSL Course

Closes #6, #7, #11, #13, and #15

See merge request !25

v1.1.6 merge

See merge request fsl/fsl_mrs!24

Master changes for 1.1.5 into production repo

See merge request fsl/fsl_mrs!23

Handling of multi-dimensional data for dynamic preprocessing in ecc and align tool.

Added function to collect dynamic results as dict or csv

See merge request wclarke/fsl_mrs!5

v1.1.4

See merge request !21