Add hcl queries

[rwblokzijl]

Add support for HCL:

@assignment.inner
@assignment.lhs
@assignment.outer
@assignment.rhs
@call.inner
@call.outer
@conditional.inner
@conditional.outer
@loop.inner
@loop.outer
@number.inner
@parameter.inner
@parameter.outer

Additionally added (curious what you think):

@conditional.condition
@conditional.lhs
@conditional.rhs

@loop.control
@loop.lhs
@loop.rhs
@loop.condition