Add ShadowJar compatibility and Query file can be define name with comment

Add Migration and Query definition class
Add Docker DB for tests

src/main/kotlin/fr/postgresjson/definition/Resource.kt

@@ -1,11 +1,38 @@
 package fr.postgresjson.definition
 
 import java.io.File
+import java.net.URL
+import java.nio.file.Path
 
 interface Resource {
     val name: String
     val script: String
-    var source: File?
+    var source: Path?
+
+    open class ParseException(message: String, cause: Throwable? = null) : Exception(message, cause)
+
+    companion object {
+        fun build(file: File): Resource =
+            build(file.readText(), Path.of(file.toURI()))
+
+        fun build(url: URL): Resource =
+            build(url.readText(), Path.of(url.toURI()))
+
+        fun build(resource: String, path: Path): Resource =
+            try {
+                Function(resource, path)
+            } catch (e: ParseException) {
+                try {
+                    Migration(resource, path)
+                } catch (e: ParseException) {
+                    try {
+                        Query(resource, path)
+                    } catch (e: ParseException) {
+                        throw ParseException("No SQL resource found")
+                    }
+                }
+            }
+    }
 }
 
 interface ResourceCollection {