%lcaGetGraphicLimits
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%  Calling Sequence
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%[lowLimit, hiLimit] = lcaGetGraphicLimits(pvs)
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%  Description
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%   Retrieve the graphic limits associated with a number of PVs.
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%  Parameters
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%   pvs
%          Column vector (in matlab: m x 1 cell- matrix) of m strings.
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%   lowLimit
%          m x 1 column vector of the PV's low graphic limit.
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%   hiLimit
%          m x 1 column vector of the PV's high graphic limit.
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%
%    till 2018-02-28
