update the pathanno.cc & Pathanalysis.cc
Annotate the start and end point of path from  entry.xml,
the xml format could refer to test/entrys.xml
annotation is "start" and "end", metadata include the source
code file path and lineNo, but lineNo to be add.

Signed-off-by: xqx12 <xiaoqixue_1@163.com>