IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I6V2HE
Feature or Bugfix: Bugfix
Binary Source:No
Signed-off-by: Nchenjiafeng <chenjiafeng10@huawei.com>

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I6CYAP
Feature or Bugfix: Feature
Binary Source:No
Signed-off-by: Nlancer <haoshuo@huawei.com>

Signed-off-by: Nleihonglin <leihonglin2@huawei.com>

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I5V415
Feature or Bugfix: Bugfix
Binary Source:No
Signed-off-by: youbing54<youbing3@huawei.com>

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I5UCNU
Feature or Bugfix: Bugfix
Binary Source:No
Signed-off-by: youbing54<youbing3@huawei.com>

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I58ZFB
Feature or Bugfix: Feature
Binary Source:No
Signed-off-by: Nlancer <haoshuo@huawei.com>

渐变、pattern，Linedash、混合
Signed-off-by: Nxucheng57 <xucheng57@huawei.com>

Signed-off-by: Nliuyuxiang-bear <liuyuxiang7@huawei.com>
Change-Id: Ice311de57f051d7ecc934c684743bd7aced9284f

相关的Issue

原因（目的、解决的问题等）
更新图形系统中UICanva画布API功能
RM008 对标H5，支持实现如下属性及接口
RM009 线条样式属性及矩形方法
RM011 在画布上绘制文本（无填充）以及向画布上绘制图像
RM012 支持alpha和合成模式属性
RM013 渐变填充方法的实现

描述（做了什么，变更了什么）
更新图形系统中UICanva画布API功能
RM008 对标H5，支持实现如下属性及接口
RM009 线条样式属性及矩形方法
RM011 在画布上绘制文本（无填充）以及向画布上绘制图像
RM012 支持alpha和合成模式属性
RM013 渐变填充方法的实现

测试用例（新增、改动、可能影响的功能）
foundation/graphic/ui/test/unittest/components/ui_canvas_unit_test.cpp
Signed-off-by: Nxucheng57 <xucheng57@huawei.com>

This reverts commit e50dcd85.
Signed-off-by: NYueBiang <suyue7@huawei.com>

    Description:add hilog
    Sig:graphic
    Feature or Bugfix:Feature
    Binary Source:No
Signed-off-by: Ndengzhihao <dengzhihao7@huawei.com>
    Change-Id: Ib45717c8b700184d823c022da89a008cebd5c0db

Change-Id: I2d0f62f939db0a9eecab600baa198e2637b4766b

Description:fix codestyle
Sig:graphic
Feature or Bugfix:Bugfix
Binary Source:No

Change-Id: I110a586a91b79f439c568b29aa628a583bb9832d