Added inline containers

[NathanPB]

It looks like this:

To create them just add the inline prop to the <Container/> tag, like this:

<Container inline>
  <Link
    tooltip={"Ação 0"}
    icon="fas fa-plus"
    href="/baaah"
    styles={{backgroundColor: darkColors.purple, color: lightColors.cyan}}
  />
  <Link tooltip={"Ação 0"} icon="fas fa-plus" href="/baaah"/>
  <Button tooltip={"Ação 0"} tooltip="Inline container" rotate>Bah!</Button>
</Container>```

It does not affects previous features of the lib, already existing things still working the same

[NathanPB]

Also this closes #8