Major cleanup of soc_simulator and gpu_profiler

hpvm/projects/gpu_profiler/.gitignore

-*.swp
-jetsonTX2Power
-pp

hpvm/projects/gpu_profiler/CMakeLists.txt

-cmake_minimum_required(VERSION 3.5)
-set(libsrc src/profiler.cpp)
-set (CMAKE_CXX_STANDARD 11)
-add_library(gpu_profiler STATIC ${libsrc})
-target_include_directories(gpu_profiler PRIVATE include)

hpvm/projects/gpu_profiler/Makefile

-all:
-	g++ -std=c++11 -O3 profiler.cpp -o pp -lpthread
-
-clean:
-	rm -rf pp

hpvm/projects/gpu_profiler/README.md

-# Tegra GPU Profiler
-
-## Build
-
-```shell
-mkdir lib
-cmake ../
-make

hpvm/projects/gpu_profiler/plot.sh

-#!/bin/sh
-input=$1
-gnuplot -p << EOF
-    #set terminal png
-    #set output "$input.png"
-    set xlabel "Time (s)"
-    set ylabel "Power (mW)"
-    set title "Power usage of GPU and DDR over time"
-    plot "$input" using 1:2 title 'GPU' with lines,"$input" using 1:3 title 'DDR' with lines
-EOF