Add "lowercase" option to the replace derivation method

I'm sneaking this in without bumping the format version as this I don't
expect custom repo templates to exist at this point, and this behavior
 is kind of unexpected in the first place

src/main/kotlin/creator/custom/derivation/ReplacePropertyDerivation.kt

@@ -28,13 +28,19 @@ class ReplacePropertyDerivation(
     val regex: Regex,
     val replacement: String,
     val maxLength: Int?,
+    val lowercase: Boolean,
 ) : PreparedDerivation {
 
     override fun derive(parentValues: List<Any?>): Any? {
         val projectName = parentValues.first() as? String
             ?: return null
 
-        val sanitized = projectName.lowercase().replace(regex, replacement)
+        var sanitized = projectName
+        if (lowercase) {
+            sanitized = sanitized.lowercase()
+        }
+
+        sanitized = sanitized.replace(regex, replacement)
         if (maxLength != null && sanitized.length > maxLength) {
             return sanitized.substring(0, maxLength)
         }
@@ -88,7 +94,8 @@ class ReplacePropertyDerivation(
             }
 
             val maxLength = (derivation.parameters["maxLength"] as? Number)?.toInt()
-            return ReplacePropertyDerivation(regex, replacement, maxLength)
+            val lowercase = derivation.parameters["lowercase"] as? Boolean == true
+            return ReplacePropertyDerivation(regex, replacement, maxLength, lowercase)
         }
     }
 }

src/test/kotlin/creator/StringCreatorPropertyTest.kt

@@ -74,7 +74,8 @@ class StringCreatorPropertyTest : CreatorTemplateProcessorTestBase() {
                     "parameters": {
                       "regex": "[^a-z0-9-_]+",
                       "replacement": "_",
-                      "maxLength": 32
+                      "maxLength": 32,
+                      "lowercase": true
                     }
                   }
                 }