Merge pull request #1 from FlowCrypt/feature/package

Add Package.swift

Author: tomholub

Package.swift

@@ -0,0 +1,23 @@
+// swift-tools-version: 5.6
+
+import PackageDescription
+
+let package = Package(
+    name: "GMP",
+    platforms: [
+        .iOS(.v12)
+    ],
+    products: [
+        .library(
+            name: "GMP",
+            targets: ["GMP"]
+        ),
+    ],
+    targets: [
+        .binaryTarget(
+            name: "GMP",
+            url: "https://github.com/FlowCrypt/GMP/releases/download/6.2.1/GMP.xcframework.zip",
+            checksum: "e35e396f571163a83bc35601fa7505339acfed45dd935c6bed5b07264fdec519"
+        )
+    ]
+)