v0.1.0-alpha

Changes:
- Implement bootstrapping library for managing several concurrent internal services
- Refactor concurrency model for connections/logical clients and their associated I/O
- Refactor server context singleton
- Refactor error handling
    - Most errors are now gracefully sent to the FSD client directly encoded as an $ER packet,
      enhancing visibility and debugging
    - Most errors are now rightfully treated as non-fatal
- Refactor package/dependency graph
- Refactor calling conventions/interfaces for many packages
- Refactor database package
- Refactor post office

Features:
- Add VATSIM-esque HTTP/JSON "data feed"
- Add ephemeral in-memory database option
- Add user management REST API
- Add improved web interface
- Add MySQL support (drop SQLite support)

protocol/pdu.go

@@ -8,8 +8,8 @@ var V *validator.Validate
 const (
 	ClientQueryBroadcastRecipient       = "@94835"
 	ClientQueryBroadcastRecipientPilots = "@94386"
-	Delimeter                           = ":"
-	PacketDelimeter                     = "\r\n"
+	Delimiter                           = ":"
+	PacketDelimiter                     = "\r\n"
 	ServerCallsign                      = "SERVER"
 )
 
@@ -23,22 +23,6 @@ const (
 	NetworkFacilityCTR
 )
 
-const (
-	NetworkRatingUnknown = iota
-	NetworkRatingOBS
-	NetworkRatingS1
-	NetworkRatingS2
-	NetworkRatingS3
-	NetworkRatingC1
-	NetworkRatingC2
-	NetworkRatingC3
-	NetworkRatingI1
-	NetworkRatingI2
-	NetworkRatingI3
-	NetworkRatingSUP
-	NetworkRatingADM
-)
-
 const (
 	SimulatorTypeUnknown = iota
 	SimulatorTypeMSFS95
@@ -99,5 +83,6 @@ const (
 )
 
 type PDU interface {
+	Parse(string) error
 	Serialize() string
 }