Numerics cast

• Add AsInt64, AsInt32, AsInt16, AsInt8
• Add AsUint64, AsUint32, AsUint16, AsUint8
• AsInt returns now an int instead of an int64
• AsUint returns now an uint instead of an uint64

Go modules

v1.1.1

using indirect (#3)

Use reflect to convert

v1.1.0

better support to convert ptr, alias type with reflect. (#1)

Add cast.AsUint

v1.0.2

Add uint converters

add duration cast

v1.0.1

add duration cast

v1.0.0

Remove precision in as string...