Fixing some CPF-Fields name

[khalsz]

- Convert field names to camelCase

- I think we should change the following cpf fields as follows

all field that are like
cpf_amin_ipmax: Optional[float] = Field(
alias="generic_minor_radius_max_current",
description="(Generic) Minor radius at time of peak plasma current for MAST and MAST-U",
)
or

cpf_amin_truby: Optional[float] = Field(
    alias="generic_minor_radius_ruby_time",
    description="(Generic) Minor radius at time of Ruby TS for MAST only",
)

should have at between their name.
example generic_minor_radius_at_max_current, generic_minor_radius_at_ruby

the reason is because there are filed like

"thomsonDensityMax": {
  "type": "number",
  "description": "(Thomson) Peak Core Electron Density (Nd.YAG) for MAST and MAST-U"}

which does not mean at max.
But

"thomsonDensityMaxCurrent": {
  "type": "number",
  "description": "(Thomson) Core Electron Density (Nd.YAG) at time of Peak Current for MAST and MAST-U"
},

means at peak current

- For the case of generic_minor_radius_ruby_time, I suggest we remove time at the end because field that relates to time already have time at their end, e.g.

cpf_p20204: Optional[float] = Field(
    alias="mcs_pshot_gdc_time",
    description="(MCS Setup) Pre-Shot GDC duration for MAST only",
)


cpf_p20000: Optional[float] = Field(
    alias="mcs_ss_number",
    description="(MCS Setup) Shot sequence number for MAST only",
) => mcs_shot_sequence_no