rmb connection creation && send, read requests

Author: AlaaElattar

pubspec.lock

@@ -273,6 +273,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.1"
+  hashlib:
+    dependency: transitive
+    description:
+      name: hashlib
+      sha256: "67e640e19cc33070113acab3125cd48ebe480a0300e15554dec089b8878a729f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.16.0"
   hashlib_codecs:
     dependency: transitive
     description:
@@ -585,6 +593,13 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.2"
+  rmb_client:
+    dependency: "direct main"
+    description:
+      path: "packages/rmb_client"
+      relative: true
+    source: path
+    version: "1.0.0"
   secp256k1_ecdsa:
     dependency: transitive
     description: