replaced resistors

New chip resistors for reflow soldering.
Dimensions from:
http://www.vishay.com/docs/20052/crcw0201e3.pdf
http://www.vishay.com/docs/20008/dcrcw.pdf

Silkscreen according to library convention and:
http://cskl.de/fileadmin/downloads/PCBLIBRARIES/Documentation/PCB_Design_Optimization_Starts_in_the_CAD_Library.pdf

Added paths to new 3d models.