[PD] frameaccum~ missing wrap argument

[Alexandre Torres Porres]

originally frameaccum~ can perform a "phase wrap" just like phasewrap~ does
with an argument that is non zero, this is missing in the Pd version, so
you need to use both frameaccum~ and phasewrap~, which is also less
efficient than a single object.

>From Max's documentation

Arguments
phasewrap-flag (0 or nonzero) [int]
OPTIONAL

A non-zero integer argument will cause the accumulated values to be wrapped
between -π and π. This optional feature is to reduce roundoff error when
using frameaccum~ to accumulate phase values. When the argument is set to
one. frameaccum~ object performs a phase warping (like the phasewrap~
<../../docs/refpages/msp-ref/../msp-ref/phasewrap~.maxref.xml>object). It
is more efficient to use the non-zero argument than to use a combination of
frameaccum~ andphasewrap~
<../../docs/refpages/msp-ref/../msp-ref/phasewrap~.maxref.xml> objects.
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