[nicl] RFR Adding -L option to jextract tool

[Sundararajan Athijegannathan]

-L option can be used to specifiy one or more shared object search 
paths. This path is used to search for symbols during jextract run. Any 
missing symbol results in a waring being issued during a jextract 
session. Note that the -rpath option is for runtime search of shared 
objects. -L is similar search path for jextract "tool time".

Webrev: http://cr.openjdk.java.net/~sundar/jextract_L/webrev.00/index.html

Thanks,
-Sundar