by Anthony Fu @antfu
Implement CamelCase<T> which converts snake_case string to camelCase.
For example
type camelCase1 = CamelCase<'hello_world_with_types'> // expected to be 'helloWorldWithTypes'
type camelCase2 = CamelCase<'HELLO_WORLD_WITH_TYPES'> // expected to be same as previous one
