Add radial build vector to MFILE output

[je-cook]

Description of issue / requirement to address

Currently in bluemira we use a bit of a hacky solution reading in from the OUT.DAT to reconstruct the radial build vector.
It would we really nice if we could get the radial build vector directly from a PROCESS MFILE.

Proposed solution

I imagine something like an array with some labels for each created cell. There would be an off by one issue to navigate eg:

0     0.1    0.4     0.5 ......
   cs     vv     fw

pinging @jonmaddock as we disscussed some wider usecases that could benefit from this.

[jonmaddock]

@ajpearcey aside from being a useful output for Bluemira, I wonder if Process could directly benefit from such a vector containing all the radial build information, perhaps simplifying the radial build consistency constraints or similar. Are you aware of any way this could be useful for us internally?

[ajpearcey]

it would make the plot_radial_build tool a lot cleaner.

[athoynilimanew]

Today @ajpearcey, @timothy-nunn and me had a discussion regarding this issue and the structures of the MFILE.DAT and OUT.DAT files. We suggested a meeting between the Bluemira and PROCESS teams to determine the best way to replace the current workaround regarding this papercut. We also need to assess the urgency of this fix, as upcoming changes to PROCESS might render the new solution obsolete.

[athoynilimanew]

After discussion, we have decided the plan:

1. PROCESS Side: Tim will implement a way to output the ordered dictionary of radial build component to MFILE

2. Bluemira Side: Once the above is done, James will amend the functionality of reading the radial build from MFILE

@je-cook @timothy-nunn @ajpearcey

[timothy-nunn]

Output on the process side

Radial_build_component_1____ (radial_label(1))_____ "bore"
Radial_build_component_2____  (radial_label(2))_____ "ohcth"
...
Radial_build_cumulative_1___  (radial_cum(1))_____ 1.965
Radial_build_cumulative_2___  (radial_cum(2))_____ "2.545"
...

Aka a flattened ordered dictionary.