Fix tests after BufferAttribute.length update

See #6473

Resize coordinates array in EdgesGeometry

use strict (in)equalities

Allow dropping of font files to add as  example

Uninterleave sphere geo

CircleBufferGeometry

extract mesh/line/pointCloud rendering from renderBufferDirect.

At the moment, renderBufferDirect is a large method body with a common
and 3 separate codes for each object type.
This patch extracts each code into its own method, this helps the
JavaScript JIT compiler inlining, but most importantly it allows easier
method level profiling. Right now a lot of profiles just show
`renderBufferDirect`.

UVsDebug: Added support for BufferGeometry

@benaadams do you mind changing the other ones? O:)

Convert BufferGeo to InstancedGeo

Fix logarithmic depth buffer not being used in shader program