Add a template engine

[c8y3]

For the view : html elements + their class names (with context describe only in one place)
with {a} or @A for variables
with loops and a clean syntax (either à la angular: an element is repeated, or à la mustache a delimited block is repeated) ? Think about it
which provides methods for events (just by naming them)
and with parameters passed to elements <Toto(@A, @b, @c)>
Most probably just use mustache (at compile-time!)