Fix BST available EEG caps alignment to Scalp

[chinmaychinara91]

From the discussion: https://github.com/brainstorm-tools/brainstorm3/pull/716#discussion_r1816791587 this PR aims to fix the alignment issues to Scalp for the various EEG cap templates provided in BST:

• [x] Generic
• [x] ANT
• [x] BioSemi
• [x] BrainProducts
• [x] EGI

[rcassani]

PR closed because the projection of EEG sensors for caps aligned on Default anatomies is handled in commit 1694229