Revert parTupledN and parMapN derivation

[nomisRev]

Currently parMapN is derived from parTupledN meaning that for parMapN you always do a redundant allocation, this was originally due to how we derived Applicative functions. So this also reduces parTraverse with n allocation for a list of size n.

Additionally, we always deal with tupled functions in parMapN that forces users to always destructure. Additionally, it disallows us to use method references in a convenient way. reference

[aballano]

👌

[danimontoya]

Great @nomisRev ! 🙌

[i-walker]

👍

[rachelcarmena]

Re-running build integration check after:

2020-08-21T12:44:23.1625080Z > Task :arrow-fx-coroutines:test
2020-08-21T12:44:23.1625140Z 
2020-08-21T12:44:23.1625240Z arrow.fx.coroutines.stream.CancellationTest > parJoin FAILED
2020-08-21T12:44:23.1625340Z     TimeoutException(duration=600s)
2020-08-21T12:44:23.1625590Z         at io.kotest.core.runtime.ExecutorExecutionContext$executeWithTimeoutInterruption$$inlined$suspendCoroutine$lambda$1.run(ExecutorExecutionContext.kt:39)
2020-08-21T12:44:23.1625750Z         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
2020-08-21T12:44:23.1625860Z         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
2020-08-21T12:44:23.1625980Z         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
2020-08-21T12:44:23.1626110Z         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
2020-08-21T12:44:23.1626230Z         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
2020-08-21T12:44:23.1626340Z         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-08-21T12:44:23.1626450Z         at java.lang.Thread.run(Thread.java:748)
2020-08-21T12:44:23.1626520Z 
2020-08-21T12:44:23.1626610Z arrow.fx.coroutines.stream.CancellationTest > executionError FAILED
2020-08-21T12:44:23.1626710Z     TimeoutException(duration=600s)
2020-08-21T12:44:23.1626820Z         at io.kotest.core.runtime.ExecutorExecutionContext$executeWithTimeoutInterruption$$inlined$suspendCoroutine$lambda$1.run(ExecutorExecutionContext.kt:39)
2020-08-21T12:44:23.1626940Z         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
2020-08-21T12:44:23.1627050Z         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
2020-08-21T12:44:23.1627170Z         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
2020-08-21T12:44:23.1627300Z         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
2020-08-21T12:44:23.1627420Z         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
2020-08-21T12:44:23.1627670Z         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-08-21T12:44:23.1627780Z         at java.lang.Thread.run(Thread.java:748)