QUADINT_TOZXY and QUADINT_FROMZXY do not detect invalid QUADINT nor ZXY

[francois-baptiste]

SELECT `carto-un.carto.QUADINT_TOZXY`(32)

SELECT`carto-un.carto.QUADINT_FROMZXY`(0,0,1)

return a result even if these QUADINT or ZXY are invalid.

It would be great to protect these functions against this (might have an overall performance impact) or to create IS_VALID_QUADINT and IS_VALID_ZXY functions.

[Jesus89]

We are going to reframe the strategy around quadint. We will take into account the IS_VALID check for that