Added underline, spoiler and strikethrough message types

[WalentinG]

No description provided.

[codecov]

Codecov Report

Merging #3 (3a32a3b) into v5.0 (954213d) will decrease coverage by 0.05%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##               v5.0       #3      +/-   ##
============================================
- Coverage     11.85%   11.80%   -0.06%     
- Complexity      475      478       +3     
============================================
  Files            80       80              
  Lines          1409     1415       +6     
============================================
  Hits            167      167              
- Misses         1242     1248       +6     

Impacted Files	Coverage Δ
src/Api/Type/Message/MessageEntityType.php	0.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 954213d...3a32a3b. Read the comment docs.

[mmasiukevich]

Thank you!