[Grow-166] TagManagerWrapper without doing the GTM setup automatically

[wilfernandesjr]

CHANGELOG 📝

• The tagManagerWrapper init method stop to append script and noscript tags into html's head. The private methods _appendAsyncScript and _appendNoScriptFallBack have been removed, once they aren't necessary anymore;
• The init method concatenates the dataLayer property (initialized on constructor, by a parameter value) with the global dataLayer object defined on GTM setup (tagManagerDataLayer variable);
• By this new version, you should do the GTM setup manually, following the official instructions. Don't forget to replace the global variable dataLayer by tagManagerDataLayer

[yvessacurae]

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[MarcelaBarella]

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