Add support for styling text elements in paragraphs

.# Specify both paragraph params followed by params on a word 
(% param1="value1" param2="value2" %)
(% param3="value3" %)hello(%%) world

.# Make sure that same param names override values
(% param4="valueA" %)hello (% param4="valueB" %)world

.# Verify that world is using param5=value4
**(% param5="value4" %)hello** world

.# Make sure that params override whatever previous values were set.
.# i.e. world only has param7=valueB and NOT param6=valueA
(% param6="valueA" %)hello (% param7="valueB" %)world