Add content types for Models

[apdavison]

Some more content types I came across while migrating Models to KGv3

Stan (https://mc-stan.org/)
TVB
BlueNaaS
DPSNN
GROMACS
PLUMED

[UlrikeS91]

I'll try to add some of them, but I'm not sure all will be equally easy. I will summarize my findings in this issue first for each one and then we can decide.

Edit: I will actually open new issues for each of the software. Otherwise, this issue here will become very chaotic.

[UlrikeS91]

@apdavison and @lzehl, could you please have a look at the linked issues (#67 - #72) and let me know what to do. I'm not that familiar with content types yet and will need some guidance in the beginning.

PS: I'm closing this issue since I split it into 6 issue - one for each of them.