Change parameter/localparam keyword to param/local

[dalance]

Closes #537

Migration guide

Change from parameter to param, and from localparam to local.

• From

module #(
    parameter  ParamA: u32 = 1,
    localparam ParamA: u32 = 1,
) () {
}

• To

module #(
    param ParamA: u32 = 1,
    local ParamA: u32 = 1,
) () {
}