[BOLT] Add Dockerfile

Summary:
Dockerfile based on Ubuntu:20.04.

Fixes facebookincubator/BOLT#214.

(cherry picked from FBD31883210)

bolt/utils/docker/Dockerfile

@@ -0,0 +1,31 @@
+FROM ubuntu:20.04 AS builder
+
+ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=UTC
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ca-certificates git \
+      build-essential cmake ninja-build python3 libjemalloc-dev \
+      python3-psutil && \
+    rm -rf /var/lib/apt/lists
+
+WORKDIR /home/bolt
+
+RUN git clone --depth 1 https://github.com/facebookincubator/BOLT llvm-project
+
+RUN mkdir build && \
+    cd build && \
+    cmake -G Ninja ../llvm-project/llvm \
+      -DLLVM_ENABLE_PROJECTS="bolt;clang;lld" \
+      -DLLVM_TARGETS_TO_BUILD="X86;AArch64" \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DLLVM_ENABLE_ASSERTIONS=ON \
+      -DCMAKE_EXE_LINKER_FLAGS="-Wl,--push-state -Wl,-whole-archive -ljemalloc_pic -Wl,--pop-state -lpthread -lstdc++ -lm -ldl" \
+      -DCMAKE_INSTALL_PREFIX=/home/bolt/install && \
+    ninja check-bolt && \
+    ninja install-llvm-bolt install-perf2bolt install-merge-fdata \
+      install-llvm-boltdiff install-bolt_rt
+
+FROM ubuntu:20.04
+
+COPY --from=builder /home/bolt/install /usr/local