Add support for all UUID versions

[IzikLisbon]

Sequelize is using Validator to validates UUID strings.
Validator supports 4 versions of UUID - 3,4,5 and all:
https://github.com/chriso/validator.js/blob/b59133b1727b6af355b403a9a97a19226cceb34b/lib/isUUID.js#L14-L19

This change is updating IsUUID to support all possible options - 3,4,5 and all.

see DefinitelyTyped/DefinitelyTyped#18777 (comment)

Other stuff
Two additional changes:

1. WhereOptions --> WhereOptions<any>
2. added as IAssociationOptionsBelongsToMany

I am not sure about any of those additional changes. I know it passed compilation and testing, but I basically choose the option that compiles.

Also running npm run build before making any change failed. I have upgraded to node 8 and then it passed. Is there any dependency on the node version or it was just something locally on my machine?

[codecov-io]

Codecov Report

Merging #92 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #92   +/-   ##
=======================================
  Coverage   95.65%   95.65%           
=======================================
  Files          66       66           
  Lines         759      759           
  Branches      106      106           
=======================================
  Hits          726      726           
  Misses         11       11           
  Partials       22       22

Impacted Files	Coverage Δ
lib/annotations/association/BelongsToMany.ts	100% <100%> (ø)	⬆️
lib/annotations/validation/IsUUID.ts	100% <100%> (ø)	⬆️

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[RobinBuschmann]

Looks good, thank you for implementing that.

One question: You've updated @types/sequelize to 4.0.68. Was this a required step to achieve this feature?

[IzikLisbon]

@RobinBuschmann yes. It needed this change:
https://github.com/DefinitelyTyped/DefinitelyTyped/pull/18777/files

[IzikLisbon]

@RobinBuschmann build and tests have failed on my machine. I tried the following

1. clone
2. npm install
3. npm run build

Got a failure (Don't remember what it was).
Upgraded to node8, ran again. This time it was successful. Is there any dependency on the node version?

Then I have tried to run:
npm run cover

got an error, asking to install sqlite3 manually. So I ran:

1. npm install sqlite3
2. npm run cover

This time it worked.

I can open an issue for this, but wanna know if you have any ideas.

[IzikLisbon]

@RobinBuschmann anything that is blocking this merge?