Shesha

- Add multiple input/computation/output type for RTC module
- uniformize axis in widget display
- better ELT Pupil generation
- add unit tests of rtc module
- add DM petal
- add fake camera input
- debug load_config_from_file
- debug wfs_init

for Internal developments:

- add compile script

- change centroid computation using CUB library

for Internal developments:

- rename internal variables

- Naga anf Shesha are pur-python module
- CarmaWrap and SheshaWrap are pur-wrapper module using pybind
- minor debug

for Internal developments:

- rename internal variables

minor changes

- Re-up the database feature that allows to skip initialisation phase by re-using results of previous similar simulation runs

- Binding based on pyBind11
- N-faces pyramid WFS
- Introduce masked pixels centroider
- Introduce GUARDIANS package
- Introduce a way to check installation
- Debug pupil alignment (for non circular pupil)
- Shesha supervisor module improvement
- Remove the use of bytes (string instead)