Add basic lyrics/timing classes

requested review from @martin2018

added 2 commits

• 48d59e9b - Add copy constructors
• 24747981 - Delete copy assignment constructors

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added 1 commit

• e42071e8 - Separating Timer in TimingScene and TimingView

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marked this merge request as ready

added to-review label

added 1 commit

• 911150b0 - Keep Char, Line and Syl only for timing purposes

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approved this merge request

Je ferais un truc du style factory pour construire tous les objets, mais ça peut venir après

merged

mentioned in commit 1729f1e7

removed to-review label