C-API: update API based on changes in baseapi.h; add renderer

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1040 d0cd1f9f-072b-0410-8dd7-cf729c803f20
C-API: another update API based on changes in baseapi.h

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1041 d0cd1f9f-072b-0410-8dd7-cf729c803f20