feat: move other backends to grpc

This finally makes everything more consistent

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

pkg/grpc/whisper/api/api.go

@@ -0,0 +1,16 @@
+package api
+
+import "time"
+
+type Segment struct {
+	Id     int           `json:"id"`
+	Start  time.Duration `json:"start"`
+	End    time.Duration `json:"end"`
+	Text   string        `json:"text"`
+	Tokens []int         `json:"tokens"`
+}
+
+type Result struct {
+	Segments []Segment `json:"segments"`
+	Text     string    `json:"text"`
+}