[FEATURE] Enable transforming of value types

[rhazn]

User Story

1. As a {user}
2. I want {to change the value type of data}
3. So that {I can save it correctly}

User Acceptance Criteria

• A X as Y operator exists that takes the input X and returns it parsed as built in value type Y (see https://jvalue.github.io/jayvee/docs/user/valuetypes/builtin-valuetypes)
  • Alternatively, multiple asDecimal X unary operators for every built in value type
• Transforms can define different value types for inputs and outputs (this should already work)
• TableTransformer blocks with transforms that change value types for the same columns work

Examples

See the following model with open data from SWC: https://github.com/jvalue/SWC2-JValue-OCDE-Case1/blob/main/models/12781142/refractiveIndicesAndDielectricConstantsModel.jv

• The column values contains numeric data like this: [123]
• The goal is to save it as integer: 123
• The [RemoveClosingBraces](https://github.com/jvalue/SWC2-JValue-OCDE-Case1/blob/main/models/12781142/refractiveIndicesAndDielectricConstantsModel.jv#L53) transform removes the braces (but returns the value as a text 😢 )
• The [ClosingBracesRemover](https://github.com/jvalue/SWC2-JValue-OCDE-Case1/blob/main/models/12781142/refractiveIndicesAndDielectricConstantsModel.jv#L90) block applies it to the pipeline
• The [RemoveClosingBraces](https://github.com/jvalue/SWC2-JValue-OCDE-Case1/blob/main/models/12781142/refractiveIndicesAndDielectricConstantsModel.jv#L53) transform should return the value as an integer using the following expression: parse (valueWithBraces replace /\]/ with "") as integer

Notes

Definitions of Done

• A PR has been opened and accepted
• All user acceptance criteria are met
• All tests are passing