[doc] Update tutorials to the new sanity and performance syntax

[jjotero]

Closes #2082

[codecov-commenter]

Codecov Report

Merging #2167 (648d621) into master (438168b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2167   +/-   ##
=======================================
  Coverage   85.96%   85.96%           
=======================================
  Files          54       54           
  Lines        9649     9649           
=======================================
  Hits         8295     8295           
  Misses       1354     1354           

Impacted Files	Coverage Δ
reframe/utility/sanity.py	97.81% <ø> (ø)

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[vkarak]

That was a lot of work! I have some comments for improvements and if we want to be very pedantic, we should rerun the tutorial examples and update the output wherever we list it, so that the ReFrame version in the output is meaningful.

[vkarak]

Just a couple of additional minor comments.

[vkarak]

I think you forgot to git add this.

[vkarak]

Looks good. Only thing remaining is to add the stream4.py.

[jjotero]

@vkarak I just added the missing file for the stream4.py tutorial. Thanks for addressing the other stuff!