[release] v0.7.0

[yuanming-hu]

Related issue = #677

Highlights:

• Error messages
  • Use print directly instead of builtin warnings module ([Error] [ipython] Use print directly instead of builtin warnings module to prevent being supressed #1969) (by 彭于斌)
• Metal backend
  • Support assert() ([Metal] Support assert() #1959) (by Ye Kuang)
• Type system
  • Remove LegacyVectorType ([Type] [refactor] Remove LegacyVectorType #1967) (by Jiafeng Liu)
  • Make PrimitiveTypeID a public enum ([Type] [refactor] Make PrimitiveTypeID a public enum #1965) (by Xuanda Yang)
  • Make TypeFactory Global ([Type] [refactor] Make TypeFactory Global #1963) (by Jiafeng Liu)
  • Adopt the new type system in Stmt ([Type] Adopt the new type system in Stmt #1957) (by Yuanming Hu)

Full changelog:

• [Error] [ipython] Use print directly instead of builtin warnings module ([Error] [ipython] Use print directly instead of builtin warnings module to prevent being supressed #1969) (by 彭于斌)
• [Type] [refactor] Remove LegacyVectorType ([Type] [refactor] Remove LegacyVectorType #1967) (by Jiafeng Liu)
• [windows] [gui] Support ti.GUI(fast_gui=True) on Win32 ([windows] [gui] Support ti.GUI(fast_gui=True) on Win32 #1953) (by 彭于斌)
• [Type] [refactor] Make PrimitiveTypeID a public enum ([Type] [refactor] Make PrimitiveTypeID a public enum #1965) (by Xuanda Yang)
• [misc] Set CMAKE_CXX_STANDARD to 17 ([misc] Set CMAKE_CXX_STANDARD to 17 #1964) (by xumingkuan)
• [Type] [refactor] Make TypeFactory Global ([Type] [refactor] Make TypeFactory Global #1963) (by Jiafeng Liu)
• [type] Remove DataType::width ([type] Remove DataType::width #1962) (by Yuanming Hu)
• [Metal] Support assert() ([Metal] Support assert() #1959) (by Ye Kuang)
• [type] [refactor] Remove DataType::data_type ([type] [refactor] Remove DataType::data_type #1960) (by Taichi Gardener)
• [Type] Adopt the new type system in Stmt ([Type] Adopt the new type system in Stmt #1957) (by Yuanming Hu)

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[codecov]

Codecov Report

Merging #1971 into master will decrease coverage by 0.96%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1971      +/-   ##
==========================================
- Coverage   43.72%   42.76%   -0.97%     
==========================================
  Files          45       45              
  Lines        6221     6431     +210     
  Branches     1105     1105              
==========================================
+ Hits         2720     2750      +30     
- Misses       3328     3507     +179     
- Partials      173      174       +1     

Impacted Files	Coverage Δ
python/taichi/lang/ops.py	43.35% <0.00%> (-9.10%)	⬇️
python/taichi/lang/expr.py	61.65% <0.00%> (-5.20%)	⬇️
python/taichi/lang/matrix.py	64.47% <0.00%> (-4.48%)	⬇️
python/taichi/lang/snode.py	64.22% <0.00%> (-4.20%)	⬇️
python/taichi/lang/impl.py	64.01% <0.00%> (-2.75%)	⬇️
python/taichi/lang/transformer.py	81.37% <0.00%> (-0.65%)	⬇️
python/taichi/lang/shell.py	14.81% <0.00%> (-0.57%)	⬇️
python/taichi/lang/util.py	32.54% <0.00%> (-0.39%)	⬇️
python/taichi/main.py	22.60% <0.00%> (-0.36%)	⬇️
python/taichi/misc/gui.py	8.70% <0.00%> (-0.19%)	⬇️
... and 8 more

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[k-ye]

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