feat(core): update session, security system and QR exchange

- Removed session creation and Lightning payment logic
- Refactored security system:
  * no more restrictions
  * all systems enabled on session creation
- Improved QR code exchange for mobile devices

node_modules/html5-qrcode/es2015/state-manager.d.ts

@@ -0,0 +1,29 @@
+export declare enum Html5QrcodeScannerState {
+    UNKNOWN = 0,
+    NOT_STARTED = 1,
+    SCANNING = 2,
+    PAUSED = 3
+}
+export interface StateManagerTransaction {
+    execute(): void;
+    cancel(): void;
+}
+export interface StateManager {
+    startTransition(newState: Html5QrcodeScannerState): StateManagerTransaction;
+    directTransition(newState: Html5QrcodeScannerState): void;
+    getState(): Html5QrcodeScannerState;
+}
+export declare class StateManagerProxy {
+    private stateManager;
+    constructor(stateManager: StateManager);
+    startTransition(newState: Html5QrcodeScannerState): StateManagerTransaction;
+    directTransition(newState: Html5QrcodeScannerState): void;
+    getState(): Html5QrcodeScannerState;
+    canScanFile(): boolean;
+    isScanning(): boolean;
+    isStrictlyScanning(): boolean;
+    isPaused(): boolean;
+}
+export declare class StateManagerFactory {
+    static create(): StateManagerProxy;
+}