SAR-333 Add functional test against LMC requirements

Following the compilation of requirements for dish lmc, this merge request adds tests which executes the lmc interface against the requirements.

For now the tests border around mode transitions and will be expanded to cover other scenarios in the future.

This table summarises the mapping of dishMode and powerState of Dish and its sub-systems (Dish Structure, SPF and SPFRx) operatingMode and powerState. The table is as per

• 301-000000-010, SKA Dish States and Modes, Rev 3,
• SKA‐TEL‐SKO‐0000150, SKA1‐MID ICD TM to DSH, Rev 04.