Added benchmarking code and python script

demo/.gitignore

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+*.wasm

demo/benchmarks/README.md

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+# Benchmarking
+
+For creating some benchmarks for my B.Sc., I have used this python script.
+You can find more information on the input code, and why I chose these benchmarks, by reading the `Evaluation` of my thesis at: https://github.com/TUM-DSE/research-work-archive/blob/main/archive/2023/summer/docs/bsc_rehde_hardware_assisted_memory_safety_for_webassembly.pdf
+
+# Convert Input C/LLVM IR Code to WASM
+
+To generate the input .wasm code files that are later provided to the python script, you will first have to compile the C or LLVM IR files with clang to wasm64.
+Note that you should change some of the paths in the Makefiles, since they need to point to e.g. our custom clang or wasm_memsafety_rtlib.c.
+Also note that the PolybenchC .wasm files should be generated elsewhere, this only contains some smaller custom tests.
+
+# Performing Benchmarks with Python Script
+
+This script can execute benchmarks, and also evaluate them (i.e. process data and create a matplotlib graph).
+
+The way this script functions is that it expects you to first create a `base_dir`, a working dir in which you place input (.wasm) files and where output files will be saved.
+
+Expected (input) file structure to run benchmarks:
+- The `{base_dir}/wasmtime` directory should contain all wasmtime variants (e.g. `{base_dir}/wasmtime/wasmtime-mte-naive`) that you later specify on the command-line.
+- The `{base_dir}/{benchmark_suite}/build` directory should contain all input wasm files in subdirectories named after the wasmtime variant (e.g. `{base_dir}/{benchmark_suite}/build/wasmtime-mte-naive`).
+
+Note that this python script will have to be executed in QEMU with MTE enabled, since it is meant to run MTE enabled wasmtime binaries.
+
+To see all possible and required command-line eoptions, just run the script with no options like `python3 benchmarks-script.py`.