Restructure go project (#2356)

* Move main to cmd
* Move api to internal
* Move logger and manager to internal
* Move shell hiding code to separate package
* Decouple job from desktop and utils
* Decouple session from config
* Move static into internal
* Decouple config from dlna
* Move desktop to internal
* Move dlna to internal
* Decouple remaining packages from config
* Move config into internal
* Move jsonschema and paths to models
* Make ffmpeg functions private
* Move file utility methods into fsutil package
* Move symwalk into fsutil
* Move single-use util functions into client package
* Move slice functions to separate packages
* Add env var to suppress windowsgui arg
* Move hash functions into separate package
* Move identify to internal
* Move autotag to internal
* Touch UI when generating backend

internal/manager/config/urlmap.go

@@ -0,0 +1,21 @@
+package config
+
+import "strings"
+
+type URLMap map[string]string
+
+// GetFilesystemLocation returns the adjusted URL and the filesystem location
+func (m URLMap) GetFilesystemLocation(url string) (string, string) {
+	root := m["/"]
+	for k, v := range m {
+		if k != "/" && strings.HasPrefix(url, k) {
+			return strings.TrimPrefix(url, k), v
+		}
+	}
+
+	if root != "" {
+		return url, root
+	}
+
+	return url, ""
+}