doc/gopher: add high-resolution pencil sketches

These are higher-resolution scans of the little drawings used as clip art on golang.org R=bradfitz, rsc CC=golang-dev https://golang.org/cl/6929058
2012-12-12 10:51:13 -08:00 · 2012-12-12 10:51:13 -08:00 · 17b3766d18
--- a/doc/gopher/pencil/gopherhat.jpg
+++ b/doc/gopher/pencil/gopherhat.jpg
--- a/doc/gopher/pencil/gopherhelmet.jpg
+++ b/doc/gopher/pencil/gopherhelmet.jpg
--- a/doc/gopher/pencil/gophermega.jpg
+++ b/doc/gopher/pencil/gophermega.jpg
--- a/doc/gopher/pencil/gopherrunning.jpg
+++ b/doc/gopher/pencil/gopherrunning.jpg
--- a/doc/gopher/pencil/gopherswim.jpg
+++ b/doc/gopher/pencil/gopherswim.jpg
--- a/doc/gopher/pencil/gopherswrench.jpg
+++ b/doc/gopher/pencil/gopherswrench.jpg