feature: Adds backend system and basic API.

This adds the backend API, as well as backend infrastructure, including
autostarting and basic communication between the Goroutine + Application.

backend/api/backendruntime/struct.go

@@ -0,0 +1,34 @@
+package backendruntime
+
+import (
+	"net"
+	"os/exec"
+	"strings"
+)
+
+type Backend struct {
+	Name string `validate:"required"`
+	Path string `validate:"required"`
+}
+
+type Runtime struct {
+	isRuntimeRunning bool
+	logger           *writeLogger
+	currentProcess   *exec.Cmd
+	currentListener  net.Listener
+
+	ProcessPath     string
+	Logs            []string
+	RuntimeCommands chan interface{}
+}
+
+type writeLogger struct {
+	Runtime *Runtime
+}
+
+func (writer writeLogger) Write(p []byte) (n int, err error) {
+	logSplit := strings.Split(string(p), "\n")
+	writer.Runtime.Logs = append(writer.Runtime.Logs, logSplit...)
+
+	return len(p), err
+}