Ariane Integration (#448)

* [ariane/make] integrate ariane | have verilator be installed on path not in makefile

* [misc] warn on verilator not found | search for v files | cleanup build.sbt + .gitignore

* [firesim] bump

* [ci] add midas ariane tests

* [docker/ci] use new docker-image with verilator | re-elab on v changes for ariane | address comments

* [ci] remove references to local verilator install

* [verilator] update flags

* [verilator] minimal set of flags for ariane

* [ariane] bump ariane to master

* [ci] revert to 4.016 verilator

* [ci] install verilator to ci server | misc compile fixes

* [ci/make] add longer ci timeout | update when assert is added in verilator sim

* [firesim] bump for misc. updates

* [make/ci] cleanup makefile and remove firesim tests of it

* [docs/firesim] bump and clean docs

* [firesim] bump

* [ci] use remote verilator for midas tests

* [misc] cleanup built.sbt more

* [firesim] bump

* [misc] bump build.sbt patch for tutorials

* [firesim/ci] cleanup and bump firesim

scripts/ubuntu-req.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -ex
+
 sudo apt-get install -y build-essential bison flex
 sudo apt-get install -y libgmp-dev libmpfr-dev libmpc-dev zlib1g-dev vim git default-jdk default-jre
 # install sbt: https://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html
@@ -17,3 +19,9 @@ sudo apt-get install -y libgtk-3-dev
 sudo apt-get install -y python3-pip python3.6-dev rsync libguestfs-tools expat ctags
 # install DTC
 sudo apt-get install -y device-tree-compiler
+
+# install verilator
+git clone http://git.veripool.org/git/verilator
+cd verilator
+git checkout v4.028
+autoconf && ./configure && make -j16 && sudo make install