powerbank-anker-10000: Rename files

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/anker-powerbank.eps b/powerbank-anker-10000.eps
similarity index 100%
rename from anker-powerbank.eps
rename to powerbank-anker-10000.eps

diff --git a/anker-powerbank.scad b/powerbank-anker-10000.scad
similarity index 100%
rename from anker-powerbank.scad
rename to powerbank-anker-10000.scad

diff --git a/anker-powerbank.svg b/powerbank-anker-10000.svg
similarity index 100%
rename from anker-powerbank.svg
rename to powerbank-anker-10000.svg