Add script to build the software

This scripts does all the build steps
and checks the setup beforehand to reduce
frustration.

make_remarkable.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+cd "`dirname \"$0\"`"
+
+if ! which rustup >/dev/null 2>&1; then
+  echo 'Please install rustup either from your system package manager or https://rustup.rs/' >&2
+  exit 1
+fi
+
+if ! rustup show active-toolchain | grep "nightly-" >/dev/null 2>&1; then
+  echo 'Please use the nightly build.' >&2
+  echo 'Run "rustup install nightly; rustup default nightly" to do so' >&2
+  exit 1
+fi
+
+if ! rustup target list | grep "armv7-unknown-linux-gnueabihf (installed)" >/dev/null 2>&1; then
+  echo 'You need to add the armv7-unknown-linux-gnueabihf target' >&2
+  echo 'Run "rustup target add armv7-unknown-linux-gnueabihf" to do so' >&2
+  exit 1
+fi
+
+if [ ! -d /usr/local/oecore-x86_64/ ]; then
+  echo "Couldn't find the oecore toolchain at its default location" >&2
+  echo "Please install it from https://remarkable.engineering/" >&2
+  exit 1
+fi
+
+./clean.sh && \
+./build.sh && \
+./dist.sh || exit $?
+
+echo
+echo 'Congrats! You have compiled the plato port for the reMarkable!'
+echo 'The dist/ folder contains everything you need. Put it onto your reMarklable and run ./plato.sh to use it.'
+echo 'Tip: After the first launch and proper "Quit", you can make changes to the created file Settings.toml .'