Rework backing storage system

Step one: Copy the struct definitions over into a new, dedicated
submodule
Step two: Make a generator script
Step three: Define helper functions for various queries

storage-new/models/RemoteServer.go

@@ -0,0 +1,12 @@
+package models
+
+import "gorm.io/gorm"
+
+type RemoteServer struct {
+	gorm.Model
+	ServerType ServerSoftwareType // What software the server is running. Useful for formatting
+	Domain     string             // `gorm:"primaryKey"` // Domain the server exists under. Additional primary key
+	Name       string             // What the server wants to be known as (usually same as url)
+	Icon       string             // ID of a media file
+	IsSelf     bool               // Whether this server is yours truly
+}