Replaced information header to recent standard. Added component descriptions...

Replaced information header to recent standard. Added component descriptions for agi027_xxxx: ip_agi027_xxxx_mult, ip_agi027_xxxx_mult_rtl, ip_agi027_xxxx_mult_add4_rtl, ip_agi027_xxxx_complex_mult_rtl, ip_agi027_xxxx_complex_mult_rtl_canonical, ip_agi027_xxxx_complex_mult, ip_agi027_xxxx_complex_mult_27.