add message attribute to f:validateLongRange etc.

It seems very unnatural for me to not have a "message" or "validatorMessage"
attribute on the following tags:

f:validateDoubleRange
f:validateLength
f:validateLongRange
f:validateBean
f:validateRegex
f:validateRequired
f:validator

while I can set a _single_ validatormessage on, e.g. the h:inputText tag alone.

If I have multiple validators on one tag, I want to tell the user which
validation failed with a custom message. This is not possible currently
without creating an own validator that handles the different cases, although
all the required components do already exist and just need to be chained
together.
#### Environment
Operating System: All
Platform: All
#### Affected Versions
[2.0]

Start by reviewing the listed f:validateDoubleRange, f:validateLength, f:validateLongRange, f:validateBean, f:validateRegex, f:validateRequired, and f:validator tags alongside h:inputText's validatorMessage behavior. The requested result is a custom message on each validator tag so multiple validators can report which validation failed.

Written by the indexing model from the issue text.