Improve the error message and UX of tpch benchmark program

[alamb]

Which issue does this PR close?

Closes #1799

Rationale for this change

When I run the command as suggested in

https://github.com/apache/arrow-datafusion/blob/alamb%2Fbetter_bench_ux/benchmarks/README.md#L1

It errors like this which does not tell me what file it is searching for so I don't know how to fix the problem

cargo run --bin tpch -- benchmark datafusion -o /tmp -p ~/Software/tpch_data/SF1 -q 1 --format tbl
...
     Running `/Users/alamb/Software/df-target/debug/tpch benchmark datafusion -o /tmp -p /Users/alamb/Software/tpch_data/SF1 -q 1 --format tbl`
Running benchmarks with the following options: DataFusionBenchmarkOpt { query: 1, debug: false, iterations: 3, partitions: 2, batch_size: 8192, path: "/Users/alamb/Software/tpch_data/SF1", file_format: "tbl", mem_table: false, output_path: Some("/tmp") }
[2022-02-09T18:44:26Z DEBUG datafusion::execution::memory_manager] Creating memory manager with initial size 11744051.2 TB
thread 'main' panicked at 'failed to read query: Os { code: 2, kind: NotFound, message: "No such file or directory" }', benchmarks/src/bin/tpch.rs:566:42
...

the issue is I am running from the arrow-datafusion directory but the program is looking for a file like queries/1.sql and the actual location is datafusion/benchmarks/queries/1

What changes are included in this PR?

This PR adds additional searching paths for the files and produces a nicer error if they aren't found

Example Error:

alamb@MacBook-Pro-2 Software % ./df-target/debug/tpch  benchmark datafusion -o /tmp -p ~/Software/tpch_data/SF1 -q 1 --format tbl
<mark datafusion -o /tmp -p ~/Software/tpch_data/SF1 -q 1 --format tbl
Running benchmarks with the following options: DataFusionBenchmarkOpt { query: 1, debug: false, iterations: 3, partitions: 2, batch_size: 8192, path: "/Users/alamb/Software/tpch_data/SF1", file_format: "tbl", mem_table: false, output_path: Some("/tmp") }
Error: Plan("invalid query. Could not find query: [\"queries/q1.sql: No such file or directory (os error 2)\", \"benchmarks/queries/q1.sql: No such file or directory (os error 2)\"]")

Are there any user-facing changes?

fewer errors and better error messages

[alamb]

Found this while testing out #1766

[xudong963]

A good way to solve this problem. In fact, I also encountered the problem, but I just switchover the benchmark dir and run the benchmark command.