Embedded engine implementation (#161)

Co-authored-by: Tobie Morgan Hitchcock <[email protected]>

.golangci.yml

@@ -22,6 +22,7 @@ linters-settings:
       - ifElseChain
       - octalLiteral
       - whyNoLint
+      - dupSubExpr # https://github.com/go-critic/go-critic/issues/897#issuecomment-568896534
   gocyclo:
     min-complexity: 15
   goimports:

README.md

@@ -216,6 +216,20 @@ or for a secure connection
 db, err := surrealdb.New("https://localhost:8000")
 ```
 
+### Using SurrealKV and Memory
+SurrealKV and Memory also do not support live notifications at this time. This would be updated in the next 
+release.
+
+For Surreal KV
+```go
+db, err := surrealdb.New("surrealkv://path/to/dbfile.kv")
+```
+
+For Memory
+```go
+db, err := surrealdb.New("mem://")
+db, err := surrealdb.New("memory://")
+```
 
 ## Data Models
 This package facilitates communication between client and the backend service using the Concise 

db.go

@@ -49,6 +49,8 @@ func New(connectionURL string) (*DB, error) {
 		con = connection.NewHTTPConnection(newParams)
 	} else if scheme == "ws" || scheme == "wss" {
 		con = connection.NewWebSocketConnection(newParams)
+	} else if scheme == "memory" || scheme == "mem" || scheme == "surrealkv" {
+		con = connection.NewEmbeddedConnection(newParams)
 	} else {
 		return nil, fmt.Errorf("invalid connection url")
 	}

db_test.go

@@ -7,8 +7,9 @@ import (
 	"testing"
 	"time"
 
-	"github.com/stretchr/testify/suite"
 	"github.com/surrealdb/surrealdb.go"
+
+	"github.com/stretchr/testify/suite"
 	"github.com/surrealdb/surrealdb.go/pkg/connection"
 	"github.com/surrealdb/surrealdb.go/pkg/models"
 )