add entities and db migrations

src/main/kotlin/com/restapi/Main.kt

@@ -5,6 +5,7 @@ import com.restapi.config.*
 import com.restapi.config.AppConfig.Companion.appConfig
 import com.restapi.config.Auth.validateAuthToken
 import com.restapi.controllers.Entities
+import com.restapi.controllers.PurchaseOrder
 import com.restapi.domain.DataNotFoundException
 import com.restapi.domain.Session
 import com.restapi.domain.Session.currentTenant
@@ -22,6 +23,7 @@ import io.javalin.http.UnauthorizedResponse
 import io.javalin.http.util.NaiveRateLimit
 import io.javalin.http.util.RateLimitUtil
 import io.javalin.json.JavalinJackson
+import org.checkerframework.dataflow.qual.Pure
 import org.jose4j.jwt.consumer.InvalidJwtException
 import org.slf4j.LoggerFactory
 import java.security.MessageDigest
@@ -111,6 +113,12 @@ fun main(args: Array<String>) {
                     it.json(mapOf("status" to true))
                 }
 
+                path("/vendor"){
+                    path("/po"){
+                        post("", PurchaseOrder::create, Roles(Role.Explicit(listOf("ROLE_PO_CREATE", "ROLE_ADMIN"))))
+                        get("/{id}", PurchaseOrder::get, Roles(Role.Explicit(listOf("ROLE_PO_CREATE", "ROLE_PO_VIEW", "ROLE_QUOTE_CREATE"))))
+                    }
+                }
                 post("/script/database/{name}", Entities::executeStoredProcedure, Roles(adminRole, Role.DbOps))
                 post("/script/{file}/{name}", Entities::executeScript, Roles(adminRole, Role.DbOps))