Add Database helper, can save marker in stop table and read it

app/src/main/java/com/example/busroute/Database/Path.kt

@@ -0,0 +1,18 @@
+package com.example.busroute.Database
+
+import android.provider.BaseColumns
+
+object PathContract {
+    // Table contents are grouped together in an anonymous object.
+    object PathEntry : BaseColumns {
+        const val TABLE_NAME = "path"
+        const val PATH_NAME = "name"
+    }
+
+    const val SQL_CREATE_ENTRIES =
+        "CREATE TABLE ${PathEntry.TABLE_NAME} (" +
+                "${BaseColumns._ID} INTEGER PRIMARY KEY," +
+                "${PathEntry.PATH_NAME} TEXT)"
+
+    const val SQL_DELETE_ENTRIES = "DROP TABLE IF EXISTS ${PathEntry.TABLE_NAME}"
+}