Update Ghostgram features

Swiftgram/SGConfig/BUILD

@@ -0,0 +1,18 @@
+load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
+
+swift_library(
+    name = "SGConfig",
+    module_name = "SGConfig",
+    srcs = glob([
+        "Sources/**/*.swift",
+    ]),
+    copts = [
+        "-warnings-as-errors",
+    ],
+    deps = [
+        "//submodules/BuildConfig:BuildConfig"
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+)

Swiftgram/SGConfig/Sources/File.swift

@@ -0,0 +1,12 @@
+import Foundation
+
+public struct SGConfig: Codable {
+    public var apiUrl: String = "https://api.swiftgram.app"
+    public var webappUrl: String = "https://my.swiftgram.app"
+    public var botUsername: String = "SwiftgramBot"
+    public var publicKey: String?
+    public var iaps: [String] = []
+}
+
+public let SG_CONFIG: SGConfig = SGConfig()
+public let SG_API_WEBAPP_URL_PARSED = URL(string: SG_CONFIG.webappUrl)!