[FEATURE] Add new expression methods to ExpressionBuilder

This change adds additional helpful expression methods
to the TYPO3 ExpressionBuilder to allow building more
advanced database queries with cross database vendor
support for supported vendors.

These expression are required for advanced query
building and prepare the future implementation of an
`Common Table Expression` builder API, but can be
helpful in other scopes as well.

This change adds `ExpressionBuilder`

* `->as()` alias a value, field value or
  sub-expression `foo AS identifier`.
* `->concat()` concatenate multiple static
  values or field data into one string.
* `->castVarchar()` allows casting a field or value
   to varchar type with dynamic length.
* `->castInt()` allows casting a field or value to
   integer type.
* `->repeat()` create a string value with x-times
  repeated value.
* `->space()` create a string value with x-times
  of spaces.
* `->left()` create an expression returning a
  sub string of specified length from the left
  side.
* `->right()` create an expression returning a
  sub string of specified length from the right
  side, where sub-expressions can be used for
  length and value.
* `->leftPad()` pad a value or expression to a
  specific length and fill up with specified padding
  value on the left side.
* `->rightPad()` pad a value or expression to
  a specific length and fill up with specified
  padding value on the right side.

The patch covers the implementations with functional
tests.

Resolves: #103309
Releases: main
Change-Id: I65349b286d65d7026611d828f8365247b51d90b6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83209


Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>