Performance of target matching

[BoPeng]

This ticket is dedicated to performance of target resolving

case 1:

[BAM]
output: [f'a_{i}.bam' for i in range(1000)]
_output.touch()

[default]
input: [f'a_{i}.bam' for i in range(1000)]
print('ok')

[BoPeng]

case 2:

[BAM: provides='{filename}.bam']
_output.touch()

[default]
input: [f'a_{i}.bam' for i in range(1000)]
print('ok')

[BoPeng]

case 3: existing file with -T turned on

[default]
input: [f'a_{i}.bam' for i in range(1000)]
print('ok')

[BoPeng]

Filename matching is reasonably fast.