added pre version of a wiki

wiki/dev/roll.md

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+# Roll
+The roll use the `RollL5r5e` class, who store a lot of additional variables.
+
+Here is a view of `<roll>.l5r5e` properties :
+```js
+actor: null,             // actor instance
+dicesTypes: {
+    std: false,          // true if have a standard roll (ex : 1d6)
+    l5r: false,          // true if have a l5r roll (we need the RnK)
+},
+difficulty: 2,
+difficultyHidden: false,
+history: null,           // Stored data of the RnK, can be big
+initialFormula: null,    // The initial formula use in DP
+itemUuid: null,          // technique or weapon uuid
+isInitiativeRoll: false,
+keepLimit: null,         // Max number of dice to keep
+rnkEnded: false,         // false if the player can modify the roll.
+skillAssistance: 0,      // Number of skill assistance, needed to know the number of dice keept
+skillCatId: "",          // Skill category id
+skillId: "",             // Skill id
+stance: "",              // Ring id (fire, void...)
+strifeApplied: 0,        // how many strife point the linked actor have already taken
+summary: {
+    totalSuccess: 0,     // = success + explosive
+    totalBonus: 0,       // = totalSuccess - difficulty
+    success: 0,
+    explosive: 0,
+    opportunity: 0,
+    strife: 0,
+},
+targetInfos: null,       // "img" and "name" of the target if any
+voidPointUsed: false,    // if a void point as been used for this roll
+```