Create dialect api for replacement of sql

[hfhbd]

Description

The current replacement is hard coded here:

sqldelight/sqldelight-compiler/src/main/kotlin/app/cash/sqldelight/core/lang/util/TreeUtil.kt

Line 146 in f7af212

private fun PsiElement.rangesToReplace(): List<Pair<IntRange, String>> {

Use-case:
Create your own dialect with invalid SQL but replace it during code gen (basically the same use-case for sqldelight dialect) but use a dialect API instead.
Real use-case: #3338 (comment)