wallet_api: add isDeterministic()

src/wallet/api/wallet.cpp

@@ -2104,6 +2104,11 @@ bool WalletImpl::watchOnly() const
     return m_wallet->watch_only();
 }
 
+bool WalletImpl::isDeterministic() const
+{
+    return m_wallet->is_deterministic();
+}
+
 void WalletImpl::clearStatus() const
 {
     boost::lock_guard<boost::mutex> l(m_statusMutex);

src/wallet/api/wallet.h

@@ -129,6 +129,7 @@ public:
     void setRecoveringFromDevice(bool recoveringFromDevice) override;
     void setSubaddressLookahead(uint32_t major, uint32_t minor) override;
     bool watchOnly() const override;
+    bool isDeterministic() const override;
     bool rescanSpent() override;
     NetworkType nettype() const override {return static_cast<NetworkType>(m_wallet->nettype());}
     void hardForkInfo(uint8_t &version, uint64_t &earliest_height) const override;

src/wallet/api/wallet2_api.h

@@ -626,6 +626,12 @@ struct Wallet
     */
     virtual bool watchOnly() const = 0;
 
+    /**
+     * @brief isDeterministic - checks if wallet keys are deterministic
+     * @return - true if deterministic
+     */
+    virtual bool isDeterministic() const = 0;
+
     /**
      * @brief blockChainHeight - returns current blockchain height
      * @return