Add bash build scripts

Note: these are hosed on OS X due to file handle limits, see
https://github.com/dotnet/cli/issues/809 for details.

build.sh

+#!/bin/bash
+
+echo ""
+echo "Installing dotnet cli..."
+echo ""
+
+export DOTNET_INSTALL_DIR="./.dotnet/"
+
+tools/install.sh
+
+origPath=$PATH
+export PATH="./dotnet/bin/:$PATH"
+
+if [ $? -ne 0 ]; then
+  echo >&2 ".NET Execution Environment installation has failed."
+  exit 1
+fi
+
+export DOTNET_HOME="$DOTNET_INSTALL_DIR/cli"
+export PATH="$DOTNET_HOME/bin:$PATH"
+
+export autoGeneratedVersion=false
+
+# Generate version number if not set
+if [[ -z "$BuildSemanticVersion" ]]; then
+    autoVersion="$((($(date +%s) - 1451606400)/60))-$(date +%S)"
+    export BuildSemanticVersion="rc2-$autoVersion"
+    autoGeneratedVersion=true
+    
+    echo "Set version to $BuildSemanticVersion"
+fi
+
+sed -i '' "s/99.99.99-rc2/1.0.0-$BuildSemanticVersion/g" */*/project.json 
+
+# Restore packages and build product
+dotnet restore -v Minimal # Restore all packages
+dotnet pack "Dapper" --configuration Release --output "artifacts/packages"
+dotnet pack "Dapper.Contrib" --configuration Release --output "artifacts/packages"
+
+# Build all
+# Note the exclude: https://github.com/dotnet/cli/issues/1342
+for d in Dapper*/; do 
+    if [ "$d" != "*.EntityFramework.StrongName" ]; then
+        echo "Building $d"
+        pushd "$d"
+        dotnet build
+        popd
+    fi
+done
+
+# Run tests
+for d in *.Tests*/; do 
+    echo "Testing $d"
+    pushd "$d"
+    dotnet test
+    popd
+done
+
+sed -i '' "s/1.0.0-$BuildSemanticVersion/99.99.99-rc2/g" */*/project.json 
+
+if [ $autoGeneratedVersion ]; then
+    unset BuildSemanticVersion
+fi
+
+export PATH=$origPath
\ No newline at end of file