Fix IO rate

add library doc

update image

expose new compare function for two result

u syntax

expose bond group pac

expose IO/reference rate

bump version to-> < 0.43.0 >

Merge commit '280024'

expose readAeson

fix heading in irr001

bump version to-> < 0.42.5 >

add irr to doc

bump version to-> < 0.42.4 >

update regression and docs

bump version to-> < 0.42.3 >

update first loss nb

add byterm assumption example

update ref for video

bump version to-> < 0.42.2 >

fix date

Fix UT and expose first loss/ by term

add UT & multiple pool collection sample

bump version to-> < 0.42.1 >

bump version to-> < 0.42.0 >

prepare 0.42.0 release

add model on bond index schedule repayment

expose bond schedule index by integer

update faq