Prepares an easy install script for mac builds and initializes gitignore

Signed-off-by: Sudheesh Singanamalla <sudheesh@cs.washington.edu>

.gitignore

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+.idea/*
+build/*
+
+# This directory is fetched during first build and is present in this directory
+subprojects/*
+install/*

misc/mac/setup.sh

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+echo "Installing MongoDB on your Mac using Homebrew"
+brew tap mongodb/brew
+brew install mongodb-community@4.2
+
+echo "Registering MongoDB as a startup service"
+brew services start mongodb/brew/mongodb-community
+
+declare -a dependencies=("iproute2mac"
+                          "libmongoc"
+                          "libidn"
+                          "ninja"
+                          "gnu-sed"
+                          "libusrsctp"
+                          "gnutls"
+                          "libidn"
+                          "libyaml"
+                          "pkg-config"
+                          "libgcrypt")
+
+for dependency in ${dependencies[*]}
+do
+  if brew ls --version $dependency > /dev/null; then
+    echo "[OK] $dependency is already installed."
+  else
+    echo "[WARN] $dependency is not installed. Going ahead and installing $dependency"
+    brew install $dependency
+  fi;
+done
+
+
+echo "Installing tools for IP"
+brew install iproute2mac
+
+brew install libmongoc
+brew install libidn
+brew install ninja
+
+echo "Installing tuntap. This would need sudo permissions and an explicit allow for Kernel Extensions to load on mac"
+brew cask install tuntap
+echo "Follow the TN2459 Documentation to allow user approved kernel extension loading for tuntap. \\
+      https://developer.apple.com/library/archive/technotes/tn2459/_index.html"
+
+echo "Run the misc/netconf.sh to configure the required TUN devices and enable IP Forwarding"
+echo "All dependencies are upto date. Ready to build with meson and ninja"

webui/.gitignore

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+node_modules/*