fix(cb2-8121): general improvements to the type system

[pbardy2000]

Tech Debt

Generally the aim of this PR is to get the codebase to have a better source of truth for types, with better inference - all derived from the types package.

Changes:

1. Changes use of unions of TechRecordType to use more succinct syntax
2. Adds VehicleOtherThan utility type to exclude vehicle types from TechRecordType, this also replaces the NotTrailer type with this more general utility type, i.e. VehicleOtherThan<'trl'>
3. Adds Empty utility type to convert another type into the same type but with nullable fields
4. Adds Axles type which is derived from the techRecord_axles property of the V3 model and infers the specific properties of that axle based on the generic passed in, e.g. Axles<'psv'> returns an array of PSVAxles, where each item can have weights_kerbWeight. By default this uses the union of vehicle types which can have axles, i.e. 'hgv' | 'psv' | 'trl'
5. Adds Axle type which is derived from the type of items of the Axles type array, and also provides the same generics
6. Fixed no-explicit-any warning in axles service as the aforementioned types provide correct type inference

CB2-8121

Checklist

• Branch is rebased against the latest develop/common
• Code and UI has been tested manually after the additional changes
• PR title includes the JIRA ticket number
• Squashed commits contain the JIRA ticket number
• Delete branch after merge