Plotting constant deduplication

[shumpohl]

• Add a deduplication_threshold = 'default' to qupulse.plotting.render
  • 'default' -> read value from DEFAULT_DEDUPLICATION_THRESHOLD
  • None -> no deduplication

  • =0 -> values are removed as long as the total error at any point stays below

• Add qupulse.plotting.DEFAULT_DEDUPLICATION_THRESHOLD = 1e-9

Discussion:

• https://github.com/qutech/qupulse/pull/901/files/88faf7b857e837ea35326acbd07ebe2b7c135116#r2177072776
• Feat/linspace measurements reversed registers divisor #901 (comment)