build(jenkins): jenkins build scripts for Windows and Ubuntu

scripts/jenkins-pre-build.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Jenkins Pre Build script
+#   - Ubuntu 18.04
+#
+
+sudo apt install git cmake build-essential curl zip unzip tar pkg-config
+
+## current dir - RPC source directory
+export BASE_DIR="$PWD"
+
+cd "$BASE_DIR"/rpc
+## build vcpkg
+git clone --branch 2020.11-1 https://github.com/microsoft/vcpkg.git
+cd vcpkg
+./bootstrap-vcpkg.sh
+
+## install CPPRestSDK
+./vcpkg install cpprestsdk[websockets]