Add support for testing invalid inputs in benchmarks and generate malformed data

[filipecosta90]

Command-Line Interface Updates:

• Added a new --errors flag to enable error testing for invalid inputs. If --errors is provided, invalid inputs are loaded from a file specified by -f/--file.
  • Added malformed_numbers.txt containing 1,000,000 malformed "numbers" for testing purposes.

Implementation details:

• Modified logic to bypass exceptions for invalid inputs when expect_error is set to true.
• Updated all parsing functions (e.g., findmax_doubleconversion, findmax_strtod, findmax_netlib, etc.) to accept a new expect_error parameter.

Sample results:

root@hpe3:~/simple_fastfloat_benchmark# ./build/benchmarks/benchmark -f data/malformed_numbers.txt -e
# read 1000000 lines 
ASCII volume = 13.3548 MB 
netlib                                  :   418.68 MB/s (+/- 3.0 %)    31.35 Mfloat/s      10.96 i/B   153.50 i/f (+/- 0.0 %)      8.82 c/B   123.52 c/f (+/- 0.1 %)      1.24 i/c     30.33 b/f    309.07 bm/f      3.87 GHz 
doubleconversion                        :   272.10 MB/s (+/- 2.4 %)    20.37 Mfloat/s      22.40 i/B   313.68 i/f (+/- 0.0 %)     13.51 c/B   189.16 c/f (+/- 0.1 %)      1.66 i/c     63.71 b/f    329.99 bm/f      3.85 GHz 
strtod                                  :   213.13 MB/s (+/- 2.3 %)    15.96 Mfloat/s      28.77 i/B   402.94 i/f (+/- 0.0 %)     17.18 c/B   240.63 c/f (+/- 0.1 %)      1.67 i/c     82.84 b/f    348.90 bm/f      3.84 GHz 
abseil                                  :   294.40 MB/s (+/- 2.6 %)    22.04 Mfloat/s      20.82 i/B   291.57 i/f (+/- 0.0 %)     12.48 c/B   174.71 c/f (+/- 0.2 %)      1.67 i/c     63.69 b/f    280.60 bm/f      3.85 GHz 
fastfloat                               :   433.33 MB/s (+/- 3.1 %)    32.45 Mfloat/s      10.48 i/B   146.75 i/f (+/- 0.0 %)      8.53 c/B   119.42 c/f (+/- 0.1 %)      1.23 i/c     27.96 b/f    277.58 bm/f      3.87 GHz 
UTF-16 volume = 26.7097 MB 
doubleconversion                        :   555.05 MB/s (+/- 2.8 %)    20.78 Mfloat/s      11.32 i/B   317.13 i/f (+/- 0.0 %)      6.62 c/B   185.43 c/f (+/- 0.2 %)      1.71 i/c     67.03 b/f    331.43 bm/f      3.85 GHz 
fastfloat                               :   855.94 MB/s (+/- 2.8 %)    32.05 Mfloat/s       5.30 i/B   148.41 i/f (+/- 0.0 %)      4.31 c/B   120.71 c/f (+/- 0.2 %)      1.23 i/c     27.91 b/f    278.24 bm/f      3.87 GHz 

platform details:

Collection and Platform Info
    Application Command Line:	
    Operating System:	6.8.0-49-generic DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04.5 LTS"
    CPU
        Name:	Intel(R) Xeon(R) Processor code named Cascadelake
        Frequency:	2.1 GHz
        Logical CPU Count:	20
        LLC size:	28.8 MB 
        Cache Allocation Technology
            Level 2 capability:	not detected
            Level 3 capability:	available

[lemire]

Looks reasonable!!!