Improve comments in analysis

restructuring/analysis/abstract/core/definitions.v

restructuring/analysis/definitions/busy_interval.v

restructuring/analysis/definitions/no_carry_in.v

...ing/analysis/edf/rta/nonpr_reg/concrete_models/floating.v

...ring/analysis/edf/rta/nonpr_reg/concrete_models/limited.v

...nalysis/edf/rta/nonpr_reg/concrete_models/nonpreemptive.v

...g/analysis/edf/rta/nonpr_reg/concrete_models/preemptive.v

...ucturing/analysis/edf/rta/nonpr_reg/response_time_bound.v

restructuring/analysis/edf/rta/response_time_bound.v

restructuring/analysis/facts/busy_interval_exists.v

restructuring/analysis/facts/no_carry_in_exists.v

...s/fixed_priority/rta/nonpr_reg/concrete_models/floating.v

...is/fixed_priority/rta/nonpr_reg/concrete_models/limited.v

...ed_priority/rta/nonpr_reg/concrete_models/nonpreemptive.v

...fixed_priority/rta/nonpr_reg/concrete_models/preemptive.v

...alysis/fixed_priority/rta/nonpr_reg/response_time_bound.v

...cturing/analysis/fixed_priority/rta/response_time_bound.v

restructuring/model/task/preemption/limited_preemptive.v